Clipping Box/Sphere/plane doesn´t work on MRTK Unity Project

HI, im beginner on Unity / MRTK projects. I am struggle with Clipping Box/Sphere/plane, they simply  doesn´t work. Can someone help to discover what´s my mistake?

i create a objectgame cube, and atribuit "clippingbox original script" and material "clipping box". As you can see in image, doesn´t work

Have someone the knowledge to discover the error?