I have a similar problem. I now have the screen coming on, and the text flashes for the z,y,z numbers with the ? all the time as it should. When I press the button the menu comes up, but when I spin the wheel, nothing happens. When I press the button again, it goes back to status (it should do that since the first menu option is goi back to status).
Any ideas? I have this on a SKR 2..