If the sun is on either side of pilot point of view. Then looking in opposite direction from suns world position, the inside reflection on side canopy from sun white outs a large circle area (2 to 3 X's >) of vision. Only seem to wash out view on side canopy glass of BF 109's and not top glass plane if angle of plane glass would be 180 deg. opposite sun.
Graphics settings= only anti alias disabled
Environmental map = none
And use FreeTrack 6DoF