I’m probably using an older build (~month old), but my SNES and Atari emulators seem to be running fine.
The problem is, if I play Roms like Donkey Kong Country on SNES for more than a few minutes, I can’t close properly, if I use my exit combo, it closes the emulator to the white pixel in the middle of the black screen and ES doesn’t come back up.
This sounds more like the problem that I have seen on Aloshi’s ES project page. I have seen a lot of people report that after they play for an hour or so they cannot get out of the emulator and back into emulation station. I have seen this problem at least once on my own. I know that he was looking into whether this was a problem inherent with the raspberry pi. It seems like there might have been a manual change to the video settings that would help, but I have not seen anything conclusive.