@williamatics Try to use any Noises texture like BnW Spots or Grunge Map and plug it in the Normal output node with a Normal or Normal Sobel node in between. Now you should see a difference when you increase the value of the Height scale. It seems that a Normal Color node isn’t enough and that you need any greyscale texture in combination with a Normal Node. Try something like this in the picture. Does it work for you now?