Paint "Remove Foliage"

Hi Together,

I’m stuck with my Landscape material. I currently have 2 Layers (Grass and Forest) wich, when I paint them do spawn the corresponding grass/rock. With my “Remove_Foliage” material I can remove, as intended, all foliage in the area I am painting on.

BUT! The area is black… Any fix to it, except creating one layer with and one withouth foliage per biom?

Thanks a lot in advance.
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Okey… i got it myself now. Only had to create an additional Layer blend with my “Remove_Foliage” withouth any connection and use it as “No Weight-Blend”. Now I can paint my new Layer and the foliage does disapear everywhere I use it.