I had the avionics randomly switching off and back on again in flight, tripping off autopilot in the process, and usually ending up with a crashed airplane. Always seemed to happen when I walked away from the sim for a bit.
I went into the switch binding menu for the Alpha, deleted the “set avionics” for both 1 and 2, then re-bound each avionics switch position to its respective “avionics 1 on/avionics 1 off, avionics 2 on/avionics 2 off” binds instead.
So far it seems to have cleared up the Alpha Avionics switch gremlins I was having. Maybe it will fix yours too.