Have a 2 car duplex with Otis pie plates selectors.
When both cars are at home landing car 2 will not take a car call until car 1 takes off.
So if I go into car 2 and place a car call it will not move.
I then go to car 1 and place car call. Car 1 will run and then car 2 will move to placed call. Also car 2 Will always run to 4th floor in up direction before homing. It's old Otis pie plate with advancer and floor bar.
Any ideas?