F15E airbrake bug (nothing major just visual)

Noticed this visual bug, which is absolutley nothing major, just thought I would bring it up. When using the F15E, not sure about any other planes, and extending the airbrake there is no mesh for the back of the airbrake, but there is for the front. In simple terms the back is see through, but the front is there. Also this was not just a ground RB thing I also noticed it in Air RB.
I.e see image.