Anyone running to this issue? I put all my music in a smart playlist (3,000 songs) and then I make the playlist available offline on my phone. I checked my storage usage in Settings and it says I have 3,000 songs. All my songs play fine offline and I confirmed the little corner phone icon is on the playlist. Then for not apparent reason, a few hours later, apple music will remove the offline status and make them unavailable offline. Now under settings, it says I have 0 songs. Any idea on how to make sure my songs stay offline?