Imported GLB with sheen does not have sheen anymore in Unity

[marwie]

See attached glTF file - when imported into Unity there's no sheen effect anymore.

shaderball.zip

Expected: Sheen is being rendered in Unity

STRP:

1. Download glTF (shaderball2.glb is uncompressed, shaderball.glb is the same mesh but draco compressed)
2. Import into Unity (make sure you have compression packages for draco support enabled)
3. Set importer to UnityGLTF
4. See sheen is not rendered in Unity