I have no idea why or how it got set to permanently be on so I cannot state how to reproduce the bug. Once it starts happening there is no way to not reproduce it...it simply is always on freelook mode and there is no way in heaven to turn the damn thing off. It used to work as expected/configured, now suddenly one day it is locked in the ON position forever. I am running with no mods enabled at all...complete vanilla ARMA3. The only thing I can possibly relate it to is the recent boot camp update which is the only thing that has changed in my ARMA3 configuration since last time I tried to fly a helicopter...however I cannot verify that update is the cause.