Thanks for taking the time to explain your issues with videos. It helps a lot for me to understand context and brainstorm a solution. I think I’ve seen that UV issue before but I can’t remember how to solve it. The rim tile texture issue seems like there’s 2 texture slots assigned to different parts of the mesh.
Could you provide a download link for your .blend file? The best way to do this is by uploading to Dropbox, Google Drive, or similar hosting service then copying + pasting a share link. Also please pack your .blend file before saving and uploading (File > External Data > Pack all into .blend).
