I have the same problem. When I press unlock button on the remote the driver door does not unlock. I press it again, all the other doors unlock.
I replaced the door lock actuator and problem persists. By the way, this is the second new actuator so I know it's not the actuator.
I am not sure what else could be causing this problem. Everything else seems to function ok. Windows roll down if hold the unlock button, etc.
Any help will be greatly appreciated.