Whirlpool Gold Stops mid cycle

Dishwasher stops approx. 45-60 minutes in to cycle and start/pause button flashes. If I press it, it starts back up again but stops and begins to flash again after running for a while. I end up having to cancel/drain. Cannot get it to run a full cycle. Tried the diagnostic (heated dry,normal,heated dry, normal) and all LED lights on the panel light up. I closed the door and it is running what I assume is a diagnostic cycle now. Any ideas? REALLY hoping to not have to replace the control board.

I would just like to add that the diagnostic cycle finished, and all lights turned off so no error code displayed.