Hey i have have a bit of a problem i am working on roofs for my building generator and wean i apply my Parallax Occlusion shader is loses its mind if i export the generated geo form unreal as a FBX and reimport it with no change it works so i think it's a problem with the way normals are handheld in HDAs but i don't know if anyone can point me in the right direction is much a appreciate it

The First mesh in the video is the HDA in unreal and the second mesh is the geo exported and reimported as a static mesh both are using the same POM shader