Unable to instantiate a shader graph material unity 2019.4.1

it always assign a universal Render Pipeline/Lit shader in stead of my custom shader graph shader

Material NameR = new Material(Shader.Find("Shader Graphs/Wall Green Simple"));

I also tested with

public Shader MyShader;
void Start()
    {

        Material NameL = new Material(MyShader);
GetComponent<MeshRenderer>().materials[0] = NameL;
   }

also return lit shader

Help needed

Thanks

Any answer?

Hey @Franckitou , I can chase this up for you!