Controls/Settings Changed Randomly - disappearing menu options

I was playing in cessna 172 from start up. Only to find my control presets had changed automatically. Spoilers now were in place of Throttle 1 etc. Using bravo throttle quadrant. No configs or anything tampered with. This just happened entirely randomly. Also I can’t operate the cabin / flood lights on nearly all aircraft. It makes a ‘clicking’ noise as if there is a conflict with the button but I’ve checked there is no other binds on my throttle quadrant causing a conflict.

Adding further to the problems, when trying to set controls in the main menu the “return” and “apply and save” options disappear completely. And I have no option but to close the game down forcefully.