Uploading GLB - assets pipeline materials mapping is incorrect

[Maksims]

There is this specific GBL, which renders correctly in model viewer and other places, but when uploaded in Editor, has wrong material mappings: all meshes refer to the same material.
While correct material assets are still created.

File: https://github.com/Breush/lava-assets/blob/master/models/sponza.glb

[mvaligursky]

This seems to be happening only when using render components (Import Hierarchy asset import setting is on). With the model component, this works correctly.

We internally generate scene json file based on glb hierarchy, with links to materials - this is then used to construct a template with render components linked and also their materials assigned. I wonder if some search by material name takes place somewhere there - as all materials seem to have the same name.