Calendar Synchronization fails When in reverse mode with Migration Manager for Exchange 8.12 &/or 8.13
Calendar Synchronization fails when in reverse mode (Calendar synchronization reverses to synchronize from target mailbox to source upon mailbox switch) if the default Calendar has been modified, when synchronizing to Exchange 2013 or Office 365
MAgE matched folders to sync incorrectly in the described case.
This behavior is resolved by installing the latest cumulative update for Migration Manager for Exchange 8.12 & 8.13 (update 20160902EX or above)
This update can be obtained here