Hello, I am a registered developer and installed iOS 7 beta 1 on my phone. It has been working ok but I recently noticed I cant sync with itunes. I dont know what could be causing the problem, but this is what iTunes looks like on my Mac. (Attached below) My iPhone 5 is plugged in, and I can change the settings of what to sync, but it wont let me push the sync button (its greyed out) It also says its synced my music, but I dont have a single song on my iPhone. (attached below) Any help would be appreciated!