I had my textures done in Gaia using a texture spawner, but I wasn’t happy with the result, too much tiling. So I installed CTS and reworked the whole thing until it looked really nice. Then I wanted to edit the terrain a little, so I smoothed it here and there, but the texture wasn’t updating. So I ran the Gaia texture spawner… big mistake. Not only did it not update, it added some weird jagged edges.
You need to understand splatmap resolution. It’s covered in the docs, but you won’t understand until you understand the basics of how textures and UV’s work.