I will start by saying all settings are out of box for the SD-card image.
I had my Pi2 lock up when I tried to exit my game and as such it did not write the cached save info lost 5 hours :( So I did some research and found mentions of an autosave_interval function, but after enabling it opt/retropie/emulators/RetroArch/configs/retroarch.cfg it did not seem to have any effect on the game. After saving, waiting for the stipulated interval, and unplugging the Pi to simulate a crash the saved games had reverted. Then I tried in /opt/retropie/configs/all/retroarch.cfg this time the safe file actually ended up corrupt O_o so I had to start over :( Any suggestions on how to get this to work correctly? Mind you my knowledge is just enough to hurt myself I had to work hard to remember how chmod and vi worked to edit those cfg files.
Happened again today when I exited the SNES emulator it crashed
Terminate called after throwing an instance of ‘std::out_of_range’
what(): map::at
/usr/bin/emulationstation: line 20: 2239 aborted
.
.