No terrain texture

Ello c:
So I duplicated the Industrial map because I wanted to make changes but also keep the original map. I renamed the folder itself and corrected every file path in material.json files, but the terrain still doesn't have any texture. Grass, a couple of roads and dirt is visible.



This is how it looks like.


Tried launching the game in safe mode and verifying game files but nothing helped.
How can I fix this, and what did I do wrong?