Sup guys :)
Have a problems with normal maps in Unity.
Blender -> Marmoset, where i bake normals with flipped Y -> SP where project are set to OpenGL.
Model to marmoset and SP exported normally with blender default export. For Unity i use addon: https://github.com/EdyJ/blender-to-unity-fbx-exporter whis is mandatory.
In marmoset, SP everything looks okay, but in Unity normals are a bit wacky:
Was try to enable "Ignore PNG gamma" - didnt help.
Every single time... i post something and - poof! Problem dissapear.
Looks like marmo or sp bugged and didnt actuallt rewrite textures. Just delete everything, bake and export again and - problem solved :)