All of a sudden my music that I had previously favorited and had been able to play offline many many time before, won't play anymore. Go online, it plays. Go offline it won't. The heart is green too. I just don't get it. And the same goes for new songs that I download, this app just doesn't really work anymore. I use this app to listen to music all the time going to school and practice, and I don't have the ability to use data all of the time. This really is quite frustrating, please fix. Thank you