Terrain smoothing problem with shadows

[mianiak]

I keep running into this issue with the terrain smoothing when tree shadows are on it. (pls see attachment)
I have made sure that it is one piece and not 2 separate pieces. I have made sure the texture and the blended texture are the same. I have lined it up to 100% and it kind of fixes it, but then i lose the shape i want to achieve. whats funny is the same or similar shape is on other parts next to it and it doesnt cause this to happen.

 

[Emery]

While blending textures on terrain, I've had similar problems. Sorry, I don't know what the answer is, but it's like the texture wants to go 100% to one texture rather than blend.