Rinse only cycle works, but not any wash cycles

I replaced the food chopper, because it was worn out. Cleared debris from that sump area, both screens, large and small particulate, and cleaned out spray arms, top and bottom. Ran a Rinse-only cycle to test, results: Pan filled with water, quite rapidly, spray arms sprayed water, water drained at end of the cycle. All looked normal.

Ran a Wash cycle next, to test, but water did not fill dishwasher. Made a grinding noise, as if no water, so I cancelled the cycle, nothing to drain.

Next, turned off circuit breaker for at least one minute. Ran Rinse-only cycle: No issues.

Ran 1-hour wash cycle: Didn't fill with water again. Cancelled.

Ran Rinse-only cycle: No issues.

Ran Heavy-duty cycle: Didn't fill with with water, AGAIN.

Why does it fill, spin, and drain on Rinse-only cycle, but NONE of the Wash Cycles seem to work, even after shutting off power at the circuit breaker several times?

HELP!!! About to give up on this one, though I seem like I'm so close.