It's currently a product issue is what we got told by support. I guess
more pressure needs applying to actually get a fix. "PI-009059 -
Computers with macOS 11 or later fail to respect the Enable Fast User
Switching setting in the Login Window payloa...
Same issue for us, devices have the correct push certificate token and
the correct date and time but never check in only time they checked in
was when they were first enrolled. Has anyone managed to solve this? I
don't fancy having to wipe the device...
