I have an issue with a user where their primary Exchange calendar is not syncing with their iPhone. They have another calendar (personal events) in their profile that is syncing correctly.
So far, I've tried restarting all Exchange services on the server and I tried deleting the iPhone exchange profile and re-adding it. Neither step yielded any results. I also attempted creating a third calendar with some dummy events, which did sync properly to the iPhone.
I also confirmed that the calendar in question does indeed have events by deleting offline content in Outlook and re-syncing the events from the server.
What could be causing this, and how can I resolve it?