The top layer blend is not connected from its Height pin. Wouldn’t it require being connected? I’m new to the Quixel blend material. Another thing is I’ve heard of issues with the crack free displacement feature. So, try looking up a few forum posts about that and a similar issue to yours. In the pictures it appears that at a distance the details are almost gone, or are partially removed / not rendered. Do you understand how most of the material setup works?