Hi, I guess I have your same problem. I’m building my geometry with a blueprint to link many mesh and repeat some of them as instances, but alway all the geometry is static.
I did a modular peace of building and I repeated it many times around the level, the problem is sometimes the color of the floor not matches, (but just because the light), the shadows don’t look the same. When i move that elements, in some places the material gets the right color, but of course i can not place the geometry where the computer thinks is ok for him…
Now I have copy the lights from other scene “lightroom_day” download from the marketplace. after changes a few times the light angle looks like now works, but I don’t know how to really deal with that in a professional way…