When I want to play a downloaded song on my mobile device it works, but if I want to connect to Sonos it does not connect. If I already play a song (not downloaded) and want to play a downloaded song it doesn't work. It will just not play the song no matter how often I try to play the song. It also doesn't help to remove the song from the downloads. Even clearing the cache does not help and the song still cannot be played.
But adding it, or a whole album, to the queue can play the song. Still not a very good solution considering that I pay money every month and than I cannot play songs.