Hello and thanks a lot for your Support.
This problem occurs in library mode, but in my opinion it shows the slideshow as if I was in Timeline mode.
This happens on all of my devices (Windows, Edge, Android, FireTV) . This is why I thought this is probably a Problem on the Server.
When I first created that library, I made the mistake of renaming the root folder (in plex, not in the actual files) while it was searching. Since this messed it up a bit, I removed everything, did the Plex Dance and added the library again from scratch. But the problem has still been there. And i just saw, that this happens an older photo library that have been in plex for years as well. (I never noticed it, since the other library barely has any subfolders) so this is on all Plex, not just this library.
This is an example of one folder. The subfolder “Alle Dateien” contains multiple subfolders with all of the raw material that I want on Plex, but not in the slideshow of the parent folder.
