Unfortunately, these kinds of issues are normal for patch Tuesday since Nadella took over. His re-doing of QA at MS hasn't helped matters and perhaps is the cause of all these issues. I'm hoping they can get back to their old QA levels soon.
Lots of admins I've spoken to have added longer delays for more testing nowadays. That means a critical Windows update may take 4-8 weeks to get to desktops and servers now. I think MS is playing with fire here with its terrible QA and also making updates mandatory in Win10.
MS has effectively passed the testing it should be doing to its customers. If it wasn't for its monopolistic position, none of this would be remotely tolerable.