I recently noticed a similar problem with the passengers side visor when operated from the drivers control switch. Works fine from the passengers side switch. In my case it seems my switch for that visor is getting bad or needs a little contact cleaner.
iPad using iRV2 - RV Forum
2002 Monaco Windsor 40PST 2019 Equinox 1.5L, Blue OX Aventa LX tow bar, Roadmaster EZ5 baseplate, SMI Stay-In-Play Duo, TireSafeGuard TPMS