

And after texturing, when I import the model back to Marmoset, there is still present Substance's normal map seam.

When I import my mesh into the Substance Painter and apply my seamless normal map from Marmoset there appears an ugly unwanted seam. The result is pretty decent - there is no obvious seam in the symmetrical section. Also, before baking, I moved symmetrical UV-islands by one UDIM-tile. I bake my normal map in Marmoset Toolbag 3 with two main options - fix mirrored tangents and Tangent Space:Mikk/xNormal.

My model has the symmetrical section on the back - consequently, it has overlapping UV islands. Hi everyone! I ran into a technical problem with the symmetrical normal map part of my model (there is an ugly seam after texturing in Substance Painter).
