I have a Killer Instinct 2 machine with both KI1 and KI2 boards that I can swap out. The menu screen in KI1 is doing something strange. I can scroll through the options, but I cannot use the buttons to select any menu option and I cannot exit out of the menu. The buttons work fine in-game. Is there something I am missing? Why would this happen? The coin button, volume up/down, and menu buttons on the coin door work fine. It just doesn't make any sense to me