Looks like things are getting worse, I've now discovered that I can't play any of the NTSC original games, when I load the game and turn on the console, it goes to the Atari logo then you get a garbled picture, like it's out of sync. I can now play Pac Man XM with audio as I updated the version I had, I can also play Donkey Kong XM. I just don't know what it going on?! I've tried multiple TVs and multiple SD cards.
Original NTSC carts that I have work ok so the console itself is working.