I have a user that is synced to our Exchange 2003 server and bring pushed emails and calendar updates.
Problem- Some calendar updates aren't showing up in her android calendar. All calendars are checked and visible and synced. The only thing we can think of is that the events seem to be ones that are recurring events and the user did not create them. She was invited at some point, assuming. Whenever the user creates a new event on the phone or on outlook, it syncs fine. Also when the user's assistant makes an event on her calendar, it seems yo sync fine.