@jay_s_uk Sorry, I meant to say I know this isn't a supported board. I have the board that is made for vorons running klipper and I was hoping to install the duet firmware on it. I thought people were doing this...
It is currently working again. I'm not sure what happened. I thought the problem might have been that my homeall.g called my homez.g with an M98 with no quotes around the filename. I modified my homeall to not call the homez (and a few other tweaks) and everything suddenly started working. But, when I put the bad M98 back in (with no quotes, just to see if it would fail), I couldn't reproduce the problem.