From ce83e305e87229b9093c39b22add07a8dda5a5c8 Mon Sep 17 00:00:00 2001
From: Martin Dragnev <mddragnev@gmail.com>
Date: Wed, 19 Mar 2025 15:56:55 +0200
Subject: [PATCH] fix(for-of): If there is no sizeCache when updating, assign
 default item size

---
 .../src/lib/directives/for-of/for_of.directive.ts               | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.ts b/projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.ts
index 672d2fa9c66..6f79dc8751b 100644
--- a/projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.ts
+++ b/projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.ts
@@ -1800,7 +1800,7 @@ export class IgxGridForOfDirective<T, U extends T[] = T[]> extends IgxForOfDirec
         changes.forEachItem((item) => {
             if (item.previousIndex !== null &&
                 (numRemovedItems < 2 || !identityChanges.length || identityChanges[item.currentIndex])
-                && this.igxForScrollOrientation !== "horizontal") {
+                && this.igxForScrollOrientation !== "horizontal" && this.individualSizeCache.length > 0) {
                 // Reuse cache on those who have previousIndex.
                 // When there are more than one removed items currently the changes are not readable so ones with identity change
                 // should be racalculated.