As of today ( 04/27/2020) if person detection and CMC are both turned on then the notifications for ‘person detection’ will not be triggered.
As a customer, I think CMC and ‘person detection’ should work together since CMC is just for continuous motion capture and person detection should still be able to filter those motions with only ‘person’ related and trigger should be generated if I have setup only notify based on ‘person detection’