I used to love this app, but not so much anymore. Anytime I am not connected to the wifi A LOT of my songs are no longer on my playlist. Also, I cannot add songs to my playlist when I'm not connected to wifi. My son said his is the same and all of his downloaded songs will disappear as well. I'm not sure what happened with the app, but this just started 2 weeks ago. I hate that I'm paying for service that don't work. Please fix the issue or advise me on how to fix it on my end.