Mesh Terrain with Sensei Material issues

Hello,

2 problems:

  1. (Screenshot 1) Mesh Terrain Texture Modifier does these ugly folds on the mountain base when I use custom png to extrude mountain formation. I’ve tried to increase the tasselation but it looks still like a stair.
  2. I’ve downloaded Sensei Terrain to apply it on my mesh terrain map. As soon as the material become sready, it looks flat, the contrast between material A and B is very sharp, the tile of the material B (rock) is repeating very badly, it’s supposed to have Nanite rock formations in some area but they don’t spawn as expectec.

Hope someone could help me with at least one of the two problems.