I've been having this issue now and I don't know where else to turn. I've been trying to add local files to my playlist. When I add the local file from the local files tab, it appears on the playlist on the PC, but not on my phone. When I press play on the song on the PC, it will play on the computer and it will bring up the option on my phone to continue listening on the desktop or play on this iPhone, and when I choose play on this iPhone the music stops completely. I can see the cover art on my phone but when I try to play it again, nothing happens. I can't even see the song on my phone in the faded out font. My available offline button is on and my phone and computer are both on the same wifi connection. Also, all the files I'm trying to add are a MP3 file. Someone please help I've been trying to solve this for months now. Thanks!