The meshes have wrapping UVs (shown in the error output window), which means that there’s extra lighting information added to those meshes. Open the meshes in the mesh editor, and unwrap UVs (upper right drop tab for UVs). It may also require generating new UVs for each mesh, so set Source Lightmap Index (under LOD0 > Build Settings in the mesh editor) to 0 and Destination Lightmap Index to 1. Those might be set to 0 and 1 already. If unwrapping the UVs doesn’t work, then check Auto Exposure settings in the post process volume. Posting screenshots of the settings for directional and skylight could help in solving it too, in addition to a screenshot of the post process volume Exposure settings. Are there stationary lights in the scene, or any movable lights?