Playlist not showing first 4 album covers

[Firozje]

Hi, I tried to set a playlistpicture, but I didn't like it, so i removed the picture. Now there is no album cover showing at all (normally the first 4 album covers should be shown)
This is only in my playlist (phone and desktop). When I visit my profilepage it does show 4 albumcovers... Reinstalling the applications does not work.

I tried the same with a test playlist, and after I set a custom picture it will never show the 4 covers when I remove the custom picture.