Replacing ignition switch on G29 gas

[FCStreamer]

I got a new ignition for my 2016 G29 with a different/uncommon key. Just part of an attempt to make theft a little more inconvenient. The part looked plug and play so I unplugged the old ignition and plugged the new one.

It works.

However, the fuel/hours gauge is flashing now. I figured the part was defective, but replacing the old ignition did not correct the problem.

Anyone have any ideas why the gauge is flashing? BTW, it stops flashing and works properly when I turn the hazard lights on. Smells like a wiring problem, but the car was fine before the ignition switch change.