Yeah i thought that was just the procedural to make some fade and not make it perfect. As with some areas i can see that they are faded to show low maintenance, not sure. Yes it is weird. I haven’t done anything special and it is weird. I have done that tut ALOT. When i did export i did not use PDG as it caused errors.
I also did the tut from Houdini and realized that the CitySample should have utilized a TOP node so that you could process the city a lot faster but the way Unreal is not using that make rendering and exporting take so long as it only used 25% of the cores at max.