"Osd Subdvide UVs" switch does not work properly

[flat]

V-Ray OpenSubdiv "Osd Subdvide UVs" switch does not work properly.
It seems that UV is smoothed even if this switch is turned off.

This is fine with V-Ray Subdivision with UV Smoothing OFF, but it's a problem when using OpenSubdiv (e.g. rendering viewport subdivisions).

Also, with ARNOLD Render, Open Suvdiv's UV Smoothing OFF works correctly.

Attached sample scene and screen capture
Confirmed in V-Ray 5 and 6 for Maya with Maya 2022

[hermit.crab]

Thanks for the report. I've logged the issue (internal bug-tracker id: VMAYA-11642) for developer investigation. For now, use the V-Ray subdivision instead.

[flat]

Thank you for confirmation.
I expect improvement.