Server Version#: 4.108.0
Player Version#: N/A
This is perhaps a fringe use case, but nonetheless the feature seems to be broken in this situation.
If you have a Library of Personal Media, you cannot view that Library by Folders if ANY restrictions are in-place for Movies for the user trying to view it.
My specific setup is this: I have a “Personal Media” Library for Sports. In that Sports Library, there is a folder named NFL with subfolders for different years. This type of content is easier to browse on Plex by Folders. I’ve assigned a content rating of TV-PG to all of the videos in this library. A user with Parental Controls enabled is able to view the videos in this library, granted their restrictions allow TV-PG and don’t exclude TV-PG in the “Movies” section of restrictions. This is working as designed. However, when viewing this Library, if this user changes to “Folders” instead of “Movies”, Plex returns a message saying “Sports” is empty. This happens regardless of the specific content ratings Allowed or Excluded. If ANY rating is Allowed or Excluded, the user cannot view by Folders.