Hey,
there is little bug in the current version. You will have to override the automatic config OR you will have to configure at least this buttons on your controller (maybe the buttons do not exist, but you must set them, don't skip them in the config dialog):
"start" "y" "x" "pageup" "up" "right"It is the mupenConfig.py that fails, if you missed one button. It takes you back to ES frontend then...
Greetings,
Dominik