I've made a playlist, added some songs to it, then clicked the 3 dots next to the playlist and clicked on make songs available offline. When i enter the playlist, the offline symbol doesn't appear next to the songs but they are in fact available offline. When i add additional songs to that playlist, they aren't automatically downloaded for offline playback. I have to click the 3 dots next the playlist, remove downloads, then click on make available offline. Either this or individually make the new songs available offline. I'm i missing something or is this how the app is supposed to behave?