pictures are blurred, so it's impossible to see anything relevant, though I see one pad damaged (but that's the activator). Your aux pad circuitry might have been damaged by ESD, you can try to revive it with a pullup resistor (see the troubleshooting document in the FB official CFX group). First, you need to measure the pad voltage with no switch no wires attached to it and it should be 3.3V. If not, the internal pullup got destroyed, most likely by ESD. Then you can try the pullup revive trick