Release : UIM 20.4 CU8
Defect
Attached to this KB there is a fix for this issue. mon_config_service 20.46T1
Please deploy to your primary hub.
With "enable_device_precdence = True" this build of MCS will still respect the Group Priority.
Please take into account, that, by design, the Priority is only honored when a priority greater than an existing one is found.