Cannot export as GLB an imported GLB because of _BumpMap

Describe the bug I import a GLB, then export it. I have an error when export.

I have an example project : https://github.com/Morgan-6Freedom/GLBExporter

Files

RoueTest.zip

This is the material of the imported GLB :

To Reproduce Steps to reproduce the behavior:

1. Import a GLB with importer.InstantiateMainScene()
2. Export the gameobject from the scene with export.SaveToFileAndDispose()
3. see error in Unity console
4. Look at the export material :

Expected behavior The exporter should be able to export a glb with a normal map and a metallic map and an occlusion map

Desktop (please complete the following information):

• glTFast version 4.4.5
• Unity Editor version 2020.3.20f
• Render Pipeline and version Builtin pipeline
• Platform: Editor

additionally (if significant for the bug):

I added that but doesn’t seems to fix the issue

[atteneder]

@Morgan-6Freedom yes, normal map export works, as stated in the documentation.

[Morgan-6Freedom]

Hello. It seems that the 4.6.0 fix the occlusion map & the metallic. Does it fix the normal map ? https://github.com/atteneder/glTFast/releases/tag/v4.6.0