Alex noticed this issue and I tested it quickly again today. When I selected a directory for supplementary data for the phylo module (with renamed fasta sequences from the same run), the sequences did not appear on the tree in the final report and it only had the samples and Sabin. Alex said this doesn't happen when running on the command line so not sure if it is something to do with how the GUI is processing the files in the directory.
If you need anything from me to help figure it out, just let me know.
Thanks!