Struggling to get seamless / pretty transition between terrain materials

[SingleSided]

Does anyone have any advice to allow my edges to fade into the other material more? It is going to be difficult to blend this together.

Here it is with a normal map, the problem slightly alleviated but still exists:

If I up my normal map any more the grass looks way too 3d to be pretty.

Thanks

[zachary108181 (ToxicSnake48)]

I recommend putting this into #help-and-feedback because they might be able to help more

[GamEditoPro]

Is this workspace.Terrain or MeshPart?