Lerp node issues creating landscape material

I’m trying to create a landscape material by blending two Quixel Bridge material textures. I’m following as tutorial and create a Lerp node and assign one texture to A and another to B using a UV mask I create in Gaea.

If I only use one texture to A in the Lerp node and save the material, my landscape shows that texture in all the black areas. If I swap that texture to B, it shows in all the white areas. However, when I assign a second texture to A or B, only one texture shows across the entire landscape. I’m using a rock texture and a grass texture, and no matter what arrangement I do, the rock texture always shows on top of grass if both are assigned to the Lerp node.

I’m sure I’m making some dumb rookie mistake, but I’m lost. Thanks!

Can you show the material?

Material

Result

Removing rock texture link to Lerp A

I think you’re trying to use the kind of material you would use on a mesh, on a landscape.

Almost any tutorial you check will do the blend using landscape layer blend nodes, and the assigned layers system.

Might be worth trying that.