Occurring artifacts result in a weird and broken look?

[genaray]

Describe the bug Some fragments/vertexes or shaders are not loaded correctly resulting in a "broken" look.

Files

http://dl.dropboxusercontent.com/s/8cssz5eci7gkugm/coffee_maker%20%282%29.glb?dl=0

To Reproduce Steps to reproduce the behavior:

1. Attach gltFastAsset script to a gameobject
2. Set the URL to the link above
3. Make it auto load on start
4. Start the scene
5. Inspect the spawned objects material/shader/vertexeces.

Expected behavior The glb file and its model should be loaded correctly and not display any weird fragments.

Screenshots

Looks broken:

This is how it should look like (and actually does in sketchfab, blender and any other program):

Desktop (please complete the following information):

• 5.0.4
• Unity 2021.3.9f1
• Inbuild
• Editor, Android, Windows Additional context