Light Bleed without a Light

Do they disappear depending on your distance to the meshes? If not, go to World Settings > Lightmass Settings > Force No Precomputed Lighting, then rebuild the lights(should take a second.) This will get rid of all of the lightmaps if they exist so it’s worth a shot.

In the editor, I have a scene with an internal mesh, and no light.
There is a LOT of light leak/bleed on the edges of the mesh inside, despite there being no light in the scene at all.
How do I get rid of this?