Terrain doesn't tesselate

Hey guys, I recently made a landscape material to tessellate based on the height map. Here is the graph
And here’s how it looks in the level
Im using 4.14.3 and ive got my tesselation to work based on the camera distance. Any suggestions to why its not displaying right?
42596c4f56a97391d42472298b1ed3a257fd0bc4.jpeg

I think your displacement nodes aren’t correct. You need to multiply by the vertexnormalws I think.