Hey, Magic. It's fixed now. It was a bit of a disaster. Ended up replacing the ring board, which apparently stopped working at the same time as the door operator board.

After that, my dcss timeout faults disappeared but I had a whole new selection of faults because there was a line resistor jumper missing on the new imotion board.

Spent a month talking to tech support only to end up being advised to replace every board he knew the name of and still ended up staring at it until I figured it out on my own. But, on the plus side, I know more about 411s than I'll probably ever need to. Haha.