I've got a duplex with the master working fine but the slave has some door open timing issues. I've checked all devices and i/O's having to do with doors and everything is working properly. My door times are set at 5 seconds. If the car has somewhere to go wether a call or hall call or if it's homing to the lobby, it takes about 20 seconds for the door to close. If it's homed to the lobby the doors stay open until it gets a call and it still takes 20 seconds for doors to close. The doors never go into nudging and no faults are logged. The funny thing is when I shut the master down this car works fine. It's like when it's in duplex operation the calls aren't getting totally cancelled even though the i/O's for the car and hall calls are all low. Does anyone have advice of what io I need to be looking at or ant other suggestions?