Working on a TAC32 unit. Front and rear 4 stop. Using MIDI DUPRA door operators. Landings 1 and 2 are the front doors 3 and 4 are the rear doors. Some how the signal is being flipped from the controller to the hardware. My IMS is showing the front doors are trying to open at the 1st and 2nd landings. But sitting on the car top the rear door is the door getting that signal. Same just flipped for floors 3 and 4. Have gone over all the wiring harnesses and it all looks to be ok. Any ideas what I am missing?