I too am having this issue. I have noticed that I receive this error when pressing the “Start” button on my USB SNES gamepad. I only get this error after loading a game from the “Select + R” menu. If I allow the game to progress normally and load the game from the in game save feature, the Start button works…until I save it with “Select + R”. I have looked through many .cfg files and no luck. Any ideas?
Did each of these today and still getting the same error. All was working great with previous install of retropie (at least 1 year old). Tried different roms to see if it was just that rom, still getting the same error.
not sure what happened, once i posted above, my start button stopped having issues (at least for now). I did do some further looking and found this forum. I made the change to retroarch.cfg as suggested to audio, seems working for now….fingers crossed.