Problem with Drivers Power Door Lock 2011 TRD Sport DC

Ok, so randomly, my drivers side power door lock will no longer unlock using any of the interior buttons or key fob. It will lock just fine when using those, though. I pulled out the lock actuator and inspected the lock motor like many of threads suggest, but that all appeared just fine. It was cleaned and replaced.

Next, I pulled out the master control switch out of the drivers door and tested it with a pen style voltage tester. The master switch was sending current to the lock actuator when "lock" was pressed but not when "unlock" was.

So this made me think the master control switch was bad. I unplugged the master switch from the door and decided to test with out it connected. The drivers door still locks but will not unlock! It acts no different whether its plugged in or not.

So I don't believe it's the lock actuator or master control switch....what am I missing??