We have about 1800 Devices registered to Intune. We've had at least 70 with the bitlocker key issue. It asks every time the user reboots. Every device is running Windows 10.0.19045.5737.
Some devices update fine with no issues.
Windows 11 doesn't seem to be an issue at this point.
I cannot recreate this issue in a test environment.
We have paused all of our Update Rings in Intune.
I have opened a ticket with Microsoft and they have not responded.