[mtlakejim]

Might check for a loose power supply wire. Not sure if those switches operate devices directly or thru a relay. If thru relays, likely only one hot wire would be shared among them with jumpers from switch to switch. Check between the one that works and next closest

I highly recommend a volt ohm meter for anyone with an RV!!

If not bad connection between switches your getting into trace it down with the volt meter territory