When in a project or in the sim on multiple different graphics cards some stock asobo materials appear to have flipped normals.
What makes this behalvior strange is it only happens on some world grid tiles but not all. This happened a few sim updates a go and wasnt always a problem. Something changed.
To replicate, load gorund / Sand Beach texture. Set the sun low in the sky and move the material across different terrain mesh tiles.
Please see video below for an example on our upcoming NZMF scenery. (still processing 4k)