My earthshaker had a cold solder on the flipper switch that kept making it reset. Finally found after taking an isolation approach to things. Not sure if that helps. Also had weird problems with my FT until I found a break in the grounding braid. Electronics.

Just the normal isolation. Look at everything that uses the 12? Sometimes it feels these things don't make sense.

I've chased this stuff for days. Take a break breathe and sometimes it will come to you what to try. Wishing you the best of luck.

My FT sound would start to rip at certain times and that ground not attached from my speaker to the ground grid inside cab did that. Again best of luck it is tuff sometimes.

Cool sounds like the dmd board needs the attention.