I also have the same problem, here are some screenshot showing the diffrence between night and day: thanks for the comments ! :) this is how it should normally look at night. Perhaps you could slew to the same position and compare with that shot. Its possible you've found a weaker resolution area, ...

I also have the same problem, here are some screenshot showing the diffrence between night and day: Prepar3D Screenshot 2021.09.13 - 21.32.50.24.png Prepar3D Screenshot 2021.09.13 - 21.34.06.92.png Prepar3D Screenshot 2021.09.13 - 21.36.52.03.png Prepar3D Screenshot 2021.09.13 - 21.37.24.62.png