iTunes and the usage panel on iPhone 6 Plus disagree about the available space
The usage panel in my iPhone 6 (16gb) Plus's settings (Settings > General > Usage) disagrees with iTune's report of available space.
iTunes (2.11 GB free):
iPhone usage (837 MB free):
Any ideas how to make these figures sync? I have tried syncing multiple times in iTunes. I have backed up the phone, but I don't want to have to go through another wipe and restore.
iPhone 6 Plus, iOS 8.3, iTunes 12.1.2.27 in OSX 10.10.3