Hi all. For some reason Foobar won't find any music when scanning and when manually adding folders I get an error saying "Folder type not supported" and that I should pick a "plain folder". I'm not sure what that means.

Using "open with" on an audio file starts the program but nothing is played.

I don't have this kind of problem with other players.

Permission to access storage is granted. The files are located on the internal storage and not in protected system folders. I'm using Oreo 8.0 on a Moto Z.
Any ideas?