I’m not sure if we were having the same issue caused by the same situation, but I did have the “setup bug” upon updating. I was able to get things back to normal by making a purchase on my site without touching anything in the setup box. Once the order went through, the setup box changed back to the familiar WC status box.
I understand it might not be reasonable for some people to make a purchase on each and every site they run, but this seemed to work for me so I wanted to pass it along.
