Mesh Subsets not created when using Duplicate as USD Data

[johnhable]

Describe the bug
When converting a mesh with multiple materials to USD, subsets are not getting created.

Steps to reproduce
Steps to reproduce the behavior:

1. Create a mesh (such as a sphere)
2. Apply a material to the mesh (in this case, a new USDPreview material)
3. Select several polys
4. Apply a different material to those polys.
5. Right click, and select Duplicate as USD data to add to a stage.

Expected behavior
The mesh should appear in the stage with two subsets.

Attachments
Here is a dropbox linke to the .mb file, just before applying to the stage.
https://www.dropbox.com/scl/fi/1iy2ydgsv5oaq95vba6pe/sphere-test.mb?rlkey=bql7um2j0tzz3gv9nf1q0zeff&dl=0

Here is the exported .usd file.
https://www.dropbox.com/scl/fi/heoycbkzbr1q3kskz4k6q/sphere-test.usd?rlkey=okgwgzhg033pmunrfxudm4tlw&dl=0

Specs (if applicable):

• Windows 11
  --- using version included with released Maya 2024

Additional context
Note that if I export the scene to usd, and then import that file from the USD Layer Editor, the file loads as expected.

Here is a screenshot of the scene after using convert to USD data from the right-click menu.

Here is a screenshot of the scene after exporting to usd and importing again as a USD layer.

[santosd]

Hello @johnhable
Thank you for reporting this issue. I took a look and it seems that what is going on is that the Material option in your Duplicate as USD Data is not selected. If you select a Material option such as USD Preview Surface and then apply the settings and try again you should get the same as when you export:

2023-12-20.14-08-29.mp4

[johnhable]

Thanks for the info, and apologies for the late reply (holidays). That fixed it, and I'll close it out.