Hard edges when loading normal map into layer

It does a similair thing with AO too, maybe there's some kind of descrpency in how it's handling padding or mip mapping between layers and mesh maps?

@Cyril Dellenbach 

First image is the normal map loaded in to the mesh map channel. Second image is the exact same normal map loaded into the normal channel of a fill layer (Normal mixing set to replace, normal blend mode set to normal)

Hi @Jamie332597480lft,

I'm not sure to understand the issue properly, could you share a screenshot?

To be clear, a visible seam in your normal view isn't a problem as long as you don't see it in your material view. It is pretty common to have normal seams; this is due to the UV shells rotation. To make it simple, as the normals work in a tangent space, the purple (for example) will always comes from top to bottom (in DirectX format), regardless of the UV orientation. Therefore, if you paint something in between two UV shells, this may create a seam on the Normal map depending how the UVs are rotated.

In fact, these seams in the Normal map prevent seams on your Material.

But this is maybe not the issue you're facing. Let me know