Groundmodels not work?

Hello,
i have followed this Tutorial but if i drive over my Grass Texture/Mesh then its not like Grass.

My material.cs File is in "C:\Users\username\Documents\BeamNG.drive\levels\myMap\art\shapes\material.cs"
and the File looks like this:

Code:

singleton Material(skid_grassB_mid)
{
   mapTo = "grassB_mid";
   colorMap[0] = "grassB_mid";
   translucentBlendOp = "None";
   groundType = "grass";
};

singleton Material(skid_grassB)
{
   mapTo = "grassB";
   colorMap[0] = "grassB";
   translucentBlendOp = "None";
   groundType = "grass";
};

This Texture is on a Mesh that has only this Texture.
What i have maked wrong?

 

Nobody has an idea what wrong there?

 

I think. I have tried "grass", "Grass", "grass2" but nothing works.

 

No Solution there?
I have tried several thing but nothing works

 

Please upload a fully-functional demo of the problem. Something I can drop in my /mods/ folder.

EDIT: The files from the tutorial work fine for me. Are you able to get those to work for you?