hello,
SimGear version: 2017.2.1
OSG version: 3.2.3
PLIB version: 185
I fly with mouse and keyboard.
If I press "B" to release the brake, other relevant keys for flying are not working anymore and the behavior change. If I press "4", I see the sight go to the left, after pressing "6", the look go to the right, or in short: now I can only control the looking direction.
I don't know what happended. Some day ago it worked. I made no update.