Frigidaire dishwasher Model # LFID2422RF4B

A couple of weeks ago, we started a cycle and it suddenly stopped before dropping the detergent. The button lights were flashing, and a clicking sound was coming from the "control board area" of the machine. I assumed it was the control board, so I ordered a new one (PART# 5304504655) and replaced it. That didn’t fix the problem. I then ordered a new control panel/button panel, and replaced that, but that didn’t fix it either.

https://rumble.com/vpifev-frigidaire-dishwasher-lfid2422rf4b-clicking-at-control-board.html

Does anyone have any ideas as to what to check next?

Thanks,
Lance