I did not know how DistanceFieldGradient works and found this documentation:
In the DistanceFieldGradient Section I saw this nodes graph(https://docs.unrealengine.com/Images/Engine/Rendering/Materials/ExpressionReference/Utility/DistanceFieldGradient_Material.png).
However I cound not find the Mask Channel Parameter Node in my Material Editor.
Is this node replaced by one of a newer version or its name is not Mask Channel Parameter?