I have the same issue with the latest update of Launchbox, 11.8. I am trying to set my arcade buttons up for exiting a MAME game and when I go into Launchbox settings, Launchbox does not recognize any of my buttons on my arcade. My button inputs are recognized when playing a game and even when moving in and out of wheels on Bigbox but I cannot setup exiting out of a MAME game and back to Launchbox or BigBox because the buttons are not recognized.