I love using Unreal Sensei’s Autolandscape Material, it looks great and saves a lot of time. However, when I rebuild the landscape with Nanite on, it all turns black when I use Autolandscape as the material in an Open World level. I tried creating new layers, turning off and on a whole bunch of functions in the Autolandscape, and using new textures to plug into it, but nothing seems to change. Any suggestions?
I am currently suffering the same problem. I would assume landscape is not compatible with Nanite.
What you could do is get some Mega assemblies (High res Static meshes with nanite.) Instance them in an actor and build your environment with that instead. Slopemasks work fine in static meshes. You’re going to have a good time trying to spawn or make any foliage on static meshes. For this you will probably have to make a volume that can make random line traces onto the static meshes either in the static mesh actors construction script or begin play. Something about getting the staticmeshes constructed before tracing the foliage onto the staticmeshes. Learn about instances and hierarchical instances, then learn about level instances and packed level actors 
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