Static Mesh(with proper uvs and lightmap) is not shading correctly

I have a simple static mesh that I have uv mapped with both texture and lightmap uvs. I have gone through all possible avenues of fixing it: Increasing LM resolution, Remapping all UVs, Flatten Mapping all UVs, Increasing padding between LM UVs, Disabling MikkTSpace and creating a new project with a fresh import. At one point I was getting a degenerate tangent bases error when importing and have since solved that but I am still getting the same “incorrect shading” as I was when the error was coming up. I’m at a loss for what to do next.

This is the error mentioned.


UV’s 1) Texture map 2) Light map (take note of the yellow lines - I couldn’t find any documentation on what these mean)