Tested it out today and after updating I was still set on fade so the bug seems to be to do with that transition and not the slide transition. I've changed to slide and so far no crashes of any kind. I'm running the recalbox custom theme. The crash seemed to happen only when backing out of a menu, instead of fading, the screen cut to black and I had to restart the system. Definitely not a temperature issue or power issue. Anyway, switching to slide seems to have gotten around the issue. Cheers, Tim