My brain is a bit mush right now but I know I've encountered a couple of things on our home machines (2 desktops and 2 laptops) and then at the day job I've seen a good share oddities between two dozen laptops and the same amount of desktops. I can usually get whatever it is sorted out but almost always points back to an update that failed to install or cause an issue after it did. Funny part is it has rarely ever been the same exact thing twice and varies from machine to machine so each one has been a new experience, oh joy, and normally an hour or more of time lost to address.