Can i swap solenoid driver boards between Galaxy and Seawitch, and then actually play the Galaxy with Seawitch SDB??

I want to check C26, I can't think of what else the problem could be. The game starts up every time, but resets during first/second game. Voltage readings on the MPU (J4 and test points) are fine.

EDIT - I swapped the boards it not C26. This is nuts. I going to go over everything again and get readings again before anything else. I'll get there.