How to switch texture in runtime use HDRP?

I am following this guide:
https://docs.unity3d.com/ScriptReference/Material.SetTexture.html

Code (CSharp):

1. //Make sure to enable the Keywords
2.                 renderer.material.EnableKeyword("_EMISSIVE_COLOR_MAP");
3.        
4.                 renderer.material.SetTexture("_EmissiveColorMap", m_offMap);
5.                 Debug.Log("Switched Tex");

This is the code I used but it doesn't seem to be switching the material texture.

Any help would be great!

 

Update: The code works, I have just set this up wrong in the inspector sorry!