Fbx models exported from 3DsMax as FBX in different version loads with black faces even with extremely high sources of light on them.
The version I am trying to load it from is Binary 7400, but I have also tried older/other versions to no avail. Sadly I can't post a picture of what it looks like since my company does not allow imgur on their internet policy... Imagine an FBX with the sides rendered with a material and the front and back side being black. I have other meshes in the scene that don't have that issue as well. Which makes it all the more confusing.
Alternatively I will try to move to GLTF format since that is the recommended step, though it will be hard to move a large amount of models. I was hoping it would work.
Edit: It seems to have to do with some weird behaviour on the meshphysicalmaterial when interacting with my lighting.