Managed to get mine sorted with Microsoft support by doing a complete reset. Took ages though.
when you say reset - do you mean a complete re-install of Windows.
Although I thought my issue was solved - not completely as the picture on the lock screen prior to going to the logon screen now has Finish writing.
Has anyone tried rolling back the latest Windows update?
Windows 10 was uninstalled by the support agent and Windows 11 installed but still no change.
The next option was a reset (but files etc were kept). That was the only thing that worked.