It’s back! I don’t understand this issue at all. I’ve never been 100% sure of how it’s been fixed before, either. I tried changing profiles for everything and it still happened with several aircraft today, as of the latest SU15 beta. It’d be great if the right mouse button just could not possibly do something like turn off lights, battery, avionics. In this case, it turns the battery off for me rather than avionics.