Post count: 4

Getting the same problem here. I posted about it yesterday but I may as well post here too. It usually only happens if I have been playing for more than approximately 45 minutes.
I would suggest to those having this problem that as a temporary fix for your save files go into retroarch.cfg and find the line
autosave_interval =
and put in the interval that you would like the game to save (in seconds). This saves all “non-volatile” data in the SRAM which includes save files but perhaps not save states (mine haven’t saved, but I may have configured them incorrectly).
Of course this doesn’t stop ES freezing or the need to unsafely powering off your pi. I hope a fix for this can be found soon.