Hello friends, I don't quite understand it yet, it's quite complicated.
The first problem is that if I have my wall in a 4x4 grid and the grid is not really followed in the game.
on the other hand, the texture is accepted for the first object, but after the LOD change, the uv is no longer maintained even though all LODs have the same material.
With the second object, the material is not accepted at all, even though it was uploaded correctly. I also like to attach the files for it. Maybe someone can help me there
files: https://www.file-upload.net/download-14960327/Done.rar.html