Adding More Variable Types to PhysicalMaterial.h

Not sure why you add inputcore as dependency however it should work. I 've tried and had no issues, one thing to try adding dependencies under PublicDependencyModuleNames rather than PrivateDependencyModuleNames, cause there can be circular dependencies.

Also not sure but error feels some files are missing so not recognised. Can be on build some files not generated in that regard so \BodySetupCore.cpp cannot initilize them. Also OnUpdatePhysXMaterial is similar.

Are you using also the latest release from git?