My syned playlists keep disappearing off my iphone. When I log into my account on a PC, I can see that all playlists have been deleted. I'm able to recover these, but within days they will automatically delete again. I did have spotify on multiple devices (iphone, android, pc, PS4) but logged out of all accounts some time ago to see if it'll fix the problem. It hasn't. Can somebody please help? I'm running a marathon next week and need my musics!