Omniverse connector can not export material BUG

PLEASE CHECK THE VIDEO, YOU WILL FIND OUT THE PROBLEM!
https://youtu.be/UrW6QBdnda4

Omniverse connector has a serious bug when you export to USD, material.mdl can not be exported,
but sometimes it works, sometimes not,
very terrible!

even you export to server or local PC,
the bug will be happen!!!

Please fix it, it’s difficult for me to continue using Omniverse…

Hello,
Thank you for trying Omniverse and reporting this issue. I tried this locally with vray and multi-sub object materials and it worked both to local disc and to Nucleus.

It would be helpful if we can get your 3dsmax version, Connector version, and any log files. Also possibly DM me a sample file. It possible there is something in your file, it would be good rule that out and we can help figure out your issue.

max version: 2022.3update+vray 5.2
connector version: 103.3.1

canNotExportMaterial.max (1.3 MB)

Attached the max.

The strange thing is if you assign part of the multi-material to any other Poly even like a box, the multi .mdl can export fine, but if u delete the other poly, it fail again, you can check the youtube link last post, you will know what I talking about.

All my working project is hold on this bug, please help.