Building textures cannot be covered by volume fog

Recently, during my flight, I noticed that many of the building textures in the add-on scene cannot be covered by volume fog, making them particularly prominent in low visibility or rainy weather.
This issue once occurred when P3D v5 was just popularized for volume clouds, but unexpectedly it also appeared in MSFS2020. I will send some screenshots later. I think everyone will also notice.
DX11, I7-13700K, 40901440P.
What problem is causing this?

I have this issue bad today.

This is a known issue:

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