Problem with Random Yaw and Billboards

I’m using the M_Grass_Masked material to get a billboard and I’m using it as final lod for my trees. Unfortunatelly it doesn’t work when I use Random Yaw in the foliage system.

Does someone know how to get it working?

https://docs.unrealengine.com/latest/images/Resources/Showcases/Stylized/Materials/FaceCameraNetwork.png

Or maybe someone can explain me how to use the sprite node inside a material…