The Windows Security Center correctly reports the status of Trellix Endpoint Security after the installation
However, it then incorrectly claims there is no protection after a reboot.
Removing and re-installing the Trellix Agent (5.7.7) and Endpoint Security (10.7.0 Nov 2022 update) has made no difference.

There are also errors in the event log for all installed ENS modules:
Event Type: Property Collection
Error Code: Unknown failure occurred on property collection
Is there any advise on how to fix this issue (other than switching the Microsoft alert off)?