I fired up the Anbernic RG35XX this morning and it worked fine for a bit and then started flashing and games would launch and then immediately quit. The whole screen was flashing / blinking. I tried the stock OS on the original SD card and it worked fine. I ended up doing a fresh install of GarlicOS on a new SD card and that was fine, so I guess my original install hosed itself somehow. Anyone else have issues like that?
Glad to hear you got it sorted and that it was just software.
Now would be a good opportunity to make a backup of the GarlicOS card you just made. See our guide if you need some tips.