I'm using the Xbox Music Pass on my HTC 8X and had downloaded a bunch of stuff and synced it onto my phone. This morning I was wanting to clear up space, so I just deleted all the music that had been on there using the Windows 8 phone app and then readded. Now, on some of the songs I'm currently listening to. However, now a bunch of them are listed twice and I can't seem to get rid of them. Has anyone had this problem?