I’m not sure which series of wires got crossed, but, you guys are currently showing a Piper Cherokee on a Southwest flight:
flightaware.com/live/flight/SWA3812
Type: P28A / Tail: N7721W / Flight: SWA3812
This looks like a Southwest aircraft with a misprogrammed transponder. The correct tail is probably N7722B (which has a hexid which is one digit different to N7721W’s)