Gunsight glass gets rid of the bullet proof glass tint

Somehow, the tint of the gunsight gets rid of the tint from the bullet proof glass.

Here's another picture

you can also see that there is rain on the gunsight and inside of the bullet proof glass

Instead of repairs only other graphical defects.

I'll add a weird lighting of the cockpit and broken mirrors in the rain or passing clouds.

I can confirm all the behaviours

1. Gunsight glass negates bulletproof windshield tint

2. Rain effect on gunsight glass

3. Rain effect appears on the internal surface of all the exterior transparencies, including the canopy - you can see the water droplets running between the metal frames that would in reality be sandwiching the perspex/glass.