Unexpected behavior is seen on user synchronization, where users lose membership of Active Directory (AD) Groups.
There is a programmatic issue with the synchronization routine.
CA Identity Manager 14.2
A 14.2 hotfix "HF-DE407321.zip" has been made available. This is available on request from CA Technical Support
This will be rolled up into 14.2 CP4 and feature in the trunk code of 14.3