I have a problem with a 3stop simplex the car had a bad power card changed that and then the car would run from 1-2 or 2-1 but when you go to 3 the doors open and never close. relays SH (shut door) and DO just toggle back and fourth I have changed all of the solid state cards and checked to make sure the microlight isn’t goofing up. The doors will start to close but reopen immediately. Trying to figure out what’s different between 2 and 3 doors aren’t bind mechanically seem fine. There isn’t a floor switch in the hoistway just a vane and mag switch mounted to the car. Anyone have any ideas?