http://imgur.com/a/mTTgX
I've stopped using Fly Inside because of this bug but I check with each X-Plane/FI update to see if it's fixed. Basically I get these very disrupting shadows in the cockpit that are different for each eye and they move all around as you move your head and airplane. It's really not playable because at times one of you're eyes can be looking at drastically different image and it really messes with your head. I've tried using the art controls to disable cockpit shadows and anything I can find about shadows but thing has any effect. In a couple pictures I actually moved the headset outside the side of the default C172 and you still see what looks like a wing strut shadow where it shouldn't be.