I do log out regularly.Great to hear. And hopefully that also helped others who didn't report it
The solution to the temporary black screen is.... Never log out
In seriousness, I'm not sure what I can do about that except apologize for the issue. I always stay logged in because I need to keep alerts coming in.
Strange it is a fault that has developed, computer unchanged and all updates installed etc.
Just logged out a minute ago and it did it again.