Bosch SHX stuck in drain

Hi all
Hopefully someone can help with this - I truly can’t figure it out.

Dishwasher is stuck on drain when ON and door closed. Door open no drain.

If I put it into test mode it runs all the tests fine but when it gets to drain it gets stuck again. Turning off the breaker does not break the cycle.

I tested the flood switch on the multimeter and all is good.

I ordered a new control unit (was replace a few years ago due to a heater issue) and had the same issue with the new unit.

Any ideas?

Thanks in advance

Jon