Failure after importing lists, 8.1.2.0

I have imported lists successfully prior to installing 8.1.2.0 After installing 8.1.2.0, importing lists generates an error, submits the error to RM, and recommends shutting down. But it won’t shut down and killing RM with Task Manager is required. I don’t yet know how repeatable this problem is. The database I was using was pretty much new and empty and all I was trying to do was to import my source templates and my fact types from my full RM8 database.

Added: the problem did not repeat when I tried the import again.

Yes, mine hung up on “registering keys”. I couldn’t get task manager to close it, I had to reboot but the update seems to have completed successfully. I have reported to tech team.