Reply To: Retropie 3 beta 2 issue – unable to 'Configure Retroarch Controller'

[Floob]

You say it works on all games, but not SNES ones?
Have you tried a few different SNES games? (And which emulator are you using – a libretro one?)

If you have tried a few games (and not just Mario All Stars) then presumably there is something odd in (assuming you are using a libretro emulator) /opt/retropie/configs/snes/retroarch.cfg