Height Blending doesnt work.

I recently got world machine and while importing the height map to create the landscape is fine when i try to texture the landscape i run into an issue. Every time i use the height blend option it doesn’t appear. The landscape just goes black and when i even paint my textures on it instead makes the whole thing a flat colour instead of blending the textures together the way it should. Ive used height maps, splat maps and tried everything tutorials have suggested yet i still have no solution to this problem.

the screenshots show the material setup (001) and what it looks like when applied (004)