I know it sounds like a dumb, basic question. But songs that are downloaded play fine, however, if I try to play a song that is not downloaded, sometimes just refuses. To be clear, it doesn't bring up a message like "Can't play the current song", nor does it seem to start playing but no sound, etc., just nothing. Happens probably once or twice a day. Often happens if I go to an artist I'm listening to to listen to a different track on same album. I can play the tracks that are downloaded from the album, but none that aren't.
Have restarted, deleted and reinstalled the app, and have cleared the cache.
Very frustrating after paying for a premium account to have this repeatedly happen.