ignition switch, whats wrong

Mine did this with the original switch. Bought a replacement and it appeared physically the same and it did the same thing as the new one. Both in hand I noticed they were the same but two of the contacts were labeled different. Check the backside of the switches and confirm that all contact locations are the same. I had to swap 2 wires in the actual plug and reinstalled it. Worked fine then. The labels are molded into the back of each switch.