Landmass Custom Brush Material Only

Hi. I am using Landmass and for some reason the custom brush material only only applies itself on a small region of the landscape. Does anybody know why, and how to fix it?
Also the parameters of the material section they don’t work.

Yeah. I have the same issue. Did you found a solution?

Well, I did not. I just went for houdini heightfields. I know is not for everyone. My goal was to stau in ue5 but is not really possible. Now I don’t know how to get normal maps and displacements to terrains from textures.