I filled in an in game feedback form also,
On first entering the game, after moving to the steam version, from the non-steam version.
The controls AUTO-DETECT had selected 'I believe' my joystick x,y inputs and throttle (Which I did not previously use). So I could not use my mouse to select any many item. I could hear multiple audio queues that the like the curse was passing over a menu item. but couldn't select anything.
I managed to use the joystick to select the 'mouse & keyboard' only settings. This allowed me to use the menus and start the actual game world, however my character kept rotating.
I realized that the joystick throttle input was still being registered and so I noticed that setting my throttle in the center of it's position stopped the spinning. (Full throttle spun the character the opposite direction)
We need the joystick device to be disconnected from 'the 'mouse & keyboard' device option.