diff --git a/00-introduction.html b/00-introduction.html
index 38f90581..479ab8cf 100644
--- a/00-introduction.html
+++ b/00-introduction.html
@@ -1035,7 +1035,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.11" class="external-link">sandpaper (0.16.11)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
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@@ -1058,7 +1058,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/00-introduction.html",
   "dateCreated": "2018-03-12",
   "dateModified": "2025-01-07",
-  "datePublished": "2025-01-14"
+  "datePublished": "2025-01-21"
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diff --git a/01-r-basics.html b/01-r-basics.html
index 6ef54180..dcb479a5 100644
--- a/01-r-basics.html
+++ b/01-r-basics.html
@@ -570,7 +570,7 @@ <h3 class="callout-title">Exercise: Create some objects in R</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Here as some possible answers to the challenge:</p>
 <div class="codewrapper sourceCode" id="cb3">
@@ -762,7 +762,7 @@ <h3 class="callout-title">Exercise: Create objects and check their modes</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
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@@ -840,7 +840,7 @@ <h3 class="callout-title">Exercise: Create objects and check their class using 
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
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@@ -1009,7 +1009,7 @@ <h3 class="callout-title">Exercise: Compute the golden ratio</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
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@@ -1257,7 +1257,7 @@ <h3 class="callout-title">Exercise: Examining and subsetting vectors</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: upper-alpha"><li>False - Vectors have both of these properties<br></li>
 <li>True<br></li>
@@ -1485,7 +1485,7 @@ <h3 class="callout-title">Review Exercise 1</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
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@@ -1543,7 +1543,7 @@ <h3 class="callout-title">Review Exercise 2</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
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@@ -1609,7 +1609,7 @@ <h3 class="callout-title">Review Exercise 3</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
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@@ -1653,7 +1653,7 @@ <h3 class="callout-title">Review Exercise 4</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
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@@ -1687,7 +1687,7 @@ <h3 class="callout-title">Review Exercise 5</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10"> Show me the solution </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
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@@ -1833,7 +1833,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.10" class="external-link">sandpaper (0.16.10)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.11" class="external-link">sandpaper (0.16.11)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
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@@ -1856,7 +1856,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/01-r-basics.html",
   "dateCreated": "2018-03-12",
   "dateModified": "2025-01-07",
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diff --git a/02-data-prelude.html b/02-data-prelude.html
index 7e6c5a3e..6be6d5e8 100644
--- a/02-data-prelude.html
+++ b/02-data-prelude.html
@@ -631,7 +631,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.11" class="external-link">sandpaper (0.16.11)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
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 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -654,7 +654,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/02-data-prelude.html",
   "dateCreated": "2018-03-12",
   "dateModified": "2025-01-07",
-  "datePublished": "2025-01-14"
+  "datePublished": "2025-01-21"
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diff --git a/03-basics-factors-dataframes.html b/03-basics-factors-dataframes.html
index 8162aa1a..281cdb85 100644
--- a/03-basics-factors-dataframes.html
+++ b/03-basics-factors-dataframes.html
@@ -2144,7 +2144,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.10" class="external-link">sandpaper (0.16.10)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.11" class="external-link">sandpaper (0.16.11)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
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 		</footer></div> <!-- / div.container -->
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@@ -2167,7 +2167,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/03-basics-factors-dataframes.html",
   "dateCreated": "2018-03-12",
   "dateModified": "2025-01-07",
-  "datePublished": "2025-01-14"
+  "datePublished": "2025-01-21"
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diff --git a/04-bioconductor-vcfr.html b/04-bioconductor-vcfr.html
index c422e96b..57d80a2e 100644
--- a/04-bioconductor-vcfr.html
+++ b/04-bioconductor-vcfr.html
@@ -596,7 +596,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.10" class="external-link">sandpaper (0.16.10)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.11" class="external-link">sandpaper (0.16.11)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
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@@ -619,7 +619,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/04-bioconductor-vcfr.html",
   "dateCreated": "2018-03-12",
   "dateModified": "2025-01-07",
-  "datePublished": "2025-01-14"
+  "datePublished": "2025-01-21"
 }
 
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diff --git a/05-dplyr.html b/05-dplyr.html
index 89b0664b..c84a98a7 100644
--- a/05-dplyr.html
+++ b/05-dplyr.html
@@ -1564,7 +1564,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
-        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.10" class="external-link">sandpaper (0.16.10)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.11" class="external-link">sandpaper (0.16.11)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
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@@ -1587,7 +1587,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/05-dplyr.html",
   "dateCreated": "2018-03-12",
   "dateModified": "2025-01-07",
-  "datePublished": "2025-01-14"
+  "datePublished": "2025-01-21"
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diff --git a/06-data-visualization.html b/06-data-visualization.html
index 029cf651..49005327 100644
--- a/06-data-visualization.html
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@@ -953,7 +953,7 @@ <h3 class="callout-title">Challenge</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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@@ -1048,7 +1048,7 @@ <h3 class="callout-title">Challenge</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
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   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
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@@ -1265,7 +1265,7 @@ <h3 class="callout-title">Key Points</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.11" class="external-link">sandpaper (0.16.11)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.7" class="external-link">pegboard (0.7.7)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.5" class="external-link">varnish (1.0.5)</a></p>
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@@ -1288,7 +1288,7 @@ <h3 class="callout-title">Key Points</h3>
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@@ -577,7 +577,7 @@ <h3 class="callout-title">Key Points</h3>
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 		</footer></div> <!-- / div.container -->
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@@ -600,7 +600,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/07-r-help.html",
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diff --git a/404.html b/404.html
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--- a/404.html
+++ b/404.html
@@ -374,7 +374,7 @@ <h1>Page not found</h1>
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -396,8 +396,8 @@ <h1>Page not found</h1>
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   "identifier": "https://datacarpentry.github.io/genomics-r-intro/404.html",
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diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index b8b5884c..1574f572 100644
--- a/CODE_OF_CONDUCT.html
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@@ -390,7 +390,7 @@ <h1>Contributor Code of Conduct</h1>
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 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -413,7 +413,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/CODE_OF_CONDUCT.html",
   "dateCreated": "2018-03-12",
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diff --git a/LICENSE.html b/LICENSE.html
index f4627a34..fd6fae7c 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -438,7 +438,7 @@ <h1>Licenses</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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   "identifier": "https://datacarpentry.github.io/genomics-r-intro/LICENSE.html",
   "dateCreated": "2018-03-12",
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diff --git a/aio.html b/aio.html
index 2168de5b..c82cba26 100644
--- a/aio.html
+++ b/aio.html
@@ -1322,7 +1322,7 @@ <h3 class="callout-title">Exercise: Create some objects in R</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Here as some possible answers to the challenge:</p>
 <div class="codewrapper sourceCode" id="cb3">
@@ -1545,7 +1545,7 @@ <h3 class="callout-title">Exercise: Create objects and check their modes</h3>
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   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb7">
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@@ -1623,7 +1623,7 @@ <h3 class="callout-title">Exercise: Create objects and check their class using 
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   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb17">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1818,7 +1818,7 @@ <h3 class="callout-title">Exercise: Compute the golden ratio</h3>
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   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
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 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2072,7 +2072,7 @@ <h3 class="callout-title">Exercise: Examining and subsetting vectors</h3>
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   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: upper-alpha">
 <li>False - Vectors have both of these properties<br>
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   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
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@@ -2396,7 +2396,7 @@ <h3 class="callout-title">Review Exercise 2</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
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 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
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@@ -2511,7 +2511,7 @@ <h3 class="callout-title">Review Exercise 4</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
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@@ -2545,7 +2545,7 @@ <h3 class="callout-title">Review Exercise 5</h3>
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   <h4 class="accordion-header" id="headingSolution10"> Show me the solution </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
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@@ -6901,7 +6901,7 @@ <h3 class="callout-title">Challenge</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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@@ -6999,7 +6999,7 @@ <h3 class="callout-title">Challenge</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
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@@ -7049,7 +7049,7 @@ <h3 class="callout-title">Challenge</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb32">
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@@ -7097,7 +7097,7 @@ <h3 class="callout-title">Challenge</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
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@@ -7441,7 +7441,7 @@ <h3 class="callout-title">Key Points</h3>
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@@ -7464,8 +7464,8 @@ <h3 class="callout-title">Key Points</h3>
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diff --git a/discuss.html b/discuss.html
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+++ b/discuss.html
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         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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 	<div id="to-top">
@@ -406,7 +406,7 @@ <h1>Discussion</h1>
   "identifier": "https://datacarpentry.github.io/genomics-r-intro/discuss.html",
   "dateCreated": "2018-03-12",
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diff --git a/images.html b/images.html
index 65235e44..5b6aac98 100644
--- a/images.html
+++ b/images.html
@@ -523,7 +523,7 @@ <h3 id="07-r-help-figure-1">Figure 1</h3>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
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diff --git a/instructor/00-introduction.html b/instructor/00-introduction.html
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@@ -1060,7 +1060,7 @@ <h3 class="callout-title">Key Points</h3>
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diff --git a/instructor/01-r-basics.html b/instructor/01-r-basics.html
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@@ -572,7 +572,7 @@ <h3 class="callout-title">Exercise: Create some objects in R</h3>
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-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Here as some possible answers to the challenge:</p>
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@@ -764,7 +764,7 @@ <h3 class="callout-title">Exercise: Create objects and check their modes</h3>
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-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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@@ -842,7 +842,7 @@ <h3 class="callout-title">Exercise: Create objects and check their class using 
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 <ol style="list-style-type: upper-alpha"><li>False - Vectors have both of these properties<br></li>
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diff --git a/instructor/04-bioconductor-vcfr.html b/instructor/04-bioconductor-vcfr.html
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 	<div id="to-top">
@@ -621,7 +621,7 @@ <h3 class="callout-title">Key Points</h3>
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diff --git a/instructor/05-dplyr.html b/instructor/05-dplyr.html
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-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
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-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
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@@ -1290,7 +1290,7 @@ <h3 class="callout-title">Key Points</h3>
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@@ -396,8 +396,8 @@ <h1>Page not found</h1>
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index 6c17c088..bea2d268 100644
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 	<div id="to-top">
@@ -415,7 +415,7 @@ <h1>Contributor Code of Conduct</h1>
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diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
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diff --git a/instructor/aio.html b/instructor/aio.html
index cb1b5b53..c03e2713 100644
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+++ b/instructor/aio.html
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 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Here as some possible answers to the challenge:</p>
 <div class="codewrapper sourceCode" id="cb3">
@@ -1549,7 +1549,7 @@ <h3 class="callout-title">Exercise: Create objects and check their modes</h3>
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   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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 <div class="codewrapper sourceCode" id="cb7">
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 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
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   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
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-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
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-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: upper-alpha">
 <li>False - Vectors have both of these properties<br>
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 <div class="codewrapper sourceCode" id="cb76">
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 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
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@@ -2515,7 +2515,7 @@ <h3 class="callout-title">Review Exercise 4</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
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@@ -2549,7 +2549,7 @@ <h3 class="callout-title">Review Exercise 5</h3>
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   <h4 class="accordion-header" id="headingSolution10"> Show me the solution </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
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@@ -6910,7 +6910,7 @@ <h3 class="callout-title">Challenge</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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 <div class="codewrapper sourceCode" id="cb25">
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@@ -7008,7 +7008,7 @@ <h3 class="callout-title">Challenge</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
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