I tried deleting one of my playlists, but it won't go away on my Playlists bar. I can still right click the playlist, but I can't actually do anything with it (so besides not being able to delete it, I can't start a radio, edit details, etc.). That also includes not being able to see what songs I put in there.
It's not a huge deal, but it would be nice to know if I can remove it! It's pretty irritating.