Question about export

I have a scene with 6 objects, each with texture (added as GLB)
I attached the nom file
When I export I get a zip with only some of the texctures and only one object

I think some of the texture files had teh same name. How is it named?

Check the export settings, make sure that you export “all” and not just visible objects.

Yes I did
How does the name of the texture file determined?
The obj file is ok

Yes there is a conflict with multiple textures having the same name during obj export.
I’ll fix that.

I fixed it by editing the MTL file meanwhile