It does look like a normal map issue, but the normals are clean, and lined up. The normal looks totally fine in FAB inspector, and it works and looks good in Unreal and Blender. I don’t know.
I’d rather have a clean FBX, since that’s the industry standard. We should probably solve this in FAB. If I can just upload the .blend file from now on, and FAB will convert everything to FBX and GLTF on it’s own with no issue, I’ll do that going forward.
I’d be up for a meeting. Let me know how you’d like to proceed.
[UPDATE]: looking even at the UE scene, the center board is a bit different. FAB just intensifies it. I don’t know why, even when closely examining all the texture maps. It should be only a subtle difference in tone. Anyway, thanks for hearing me out.