FIX THE SYNC ISSUES

[UnavowedGenius]

Please, or I fear that I will have to cancel my premium subscription and look for another service. I cannot get the playlists that I create from files on my cpu to stay synced for play on my mobile. WHAT CAN BE DONE TO FIX THIS? And dont reply with the preview version. I am already using it. I am frustrated that I am paying the full price for half of the functionality. Fix this please.