I am running GroupWise Mobility Service 2.0.0, Build 429. I have 25 iPhone 5c's connected to it. All but one work perfectly. One iPhone syncs email and calendar but does not receive any of the users address books (there are two that should sync). I've reset the device to factory defaults from the Mobility Service admin console, from the device and from iTunes. I've deleted the user and added back. I've resync'd the user. I've noticed that on the Mail, Contacts, Calendars screen, the Default Account parameter appears for a short period of time then completely disappears. I've configured the user's iPad which has the same Apple account as the iPhone had orginally, and have the same results. Thinking there was something in the Apple account that was causing the issue, I had the user create a new Apple account for this phone and configured it after resetting the device. None of the above helped. Email and calendar sync perfectly. The address books have never sync'd with the device.

Anyone have any ideas?