The group list showing in CA Performance Center (CAPC) is not the same as in the IM Data Aggregator (DA) Rest interface. This is not resolved by a Full Sync.
CA Performance Mangement 3.5
Groups that were created in CAPC have been deleted from the DA directly via rest.
Groups created in CA Performance Center should be deleted from CA Performance Center.
If a group is deleted or created on the Data Aggregator, this is not synced back to CAPC.
Furthermore, the PC group won't be pushed back down to the Data Aggregator.