As of 1.1.0.0, the Sunrise/Sunset (previously North to South respectively) cycles were changed to East/West, but the dark background shading effect doesn't appear with it.

It does appear when looking from North to South. (this shouldn't be happening)

Attached two screenshots;

-One showing a sunset, but the dark red-orange shading colour doesn't appear. (facing East to West)

-One showing the dark red-orange shading colour (facing North to South)