I back up and sync my IOS devices with iTunes on my Mac via USB. For months now, my iPad 3rd gen appears full or over-capacity in iTunes, but syncs OK anyway. The iTunes space graph looks like this... but the iPad says plenty of room... Syncs still work as expected, but the iTunes graph remains inaccurate. This has persisted over IOS and Mac OS and iTunes version updates. It seems to have started after I set up iCloud Photos sync, but there should still be plenty of room, this is from iCloud settings... The iPhone does not have the same problem... What is the deal?