Anyone else having problems with iTunes 12 syncing to their iPhone or other iDevice? I swapped to an iPhone 4s the other day as I passed on my iPhone 5s ahead of the new iPhones arrival, everything seemed okay but it won't sync certain items added to my library after the initial sync, and I've also noticed that anything that's not on iCloud isn't playing. It took a long time for the iPhone to sync and dos go through all 2000+ songs but attempting to play them just has the music app skipping to the next constantly and when revisiting them it has the downloading symbol on but won't download them or play them no matter what I try. Any suggestions or help would be appreciated? If it turns out its just iTunes 12 at the current state then how would I go about reverting to iTunes 11?