Generate Lightmap UVs affects removes geometry

[kipash]

If enabled on some models it changes the geometry. Here in this issue it hides some. One other case was that it connected random vertexes with triangles.

With "Generate Lightmap UVs" off

With "Generate Lightmap UVs" on

Also to note, this is not just flipped normals, the mesh is not visible on the other side as well.

Model:
Model.zip

Info

Unity: 2020.3.38f1
URP: 10.10.1
Unity GLTF: 1.24.0-pre.3 via Needle registry