Is there really no way to fix this stuff? I've tried merging by height, masking by scalar to disp and scalar to boolean, colour adjust, etc, no matter what, once the stones are on a terrain, their texturing just breaks up. Doesn't matter if the texture is part of the fake stones surface, or masked to the stones in a surface layer. Same effect. About 40-50% of rocks aren't textured. I tried patch sizes, better colour/disp, everything I can think of, and nothing works.
Is this just not possible with how fake stones are handled currently? It's strange that no matter how complicated regular terrain is, the colouring is uniform, but with fake stones, we have this really bad bug in texturing.