ID 344566 - Hydra Viewer fails to read geometry.arbitrary.st if provided in non-indexed ('value' array) form

Problem summary:

The Hydra Viewer fails to load geometry ST data ('geometry.arbitrary.st') if it is provided as a flat array ('value') rather than in indexed form ('indexedValue' and 'index'), producing the following error:

[ERROR Marshall]: Error loading UVs: no value list!

Steps to reproduce:

1. Download the attached .usd file and .katana scene file.

2. Install the USD Katana plug-in and USD on your machine.

3. Open an instance of Katana and open the attached .katana scene file.

4. On the Node Graph set the view and edit flags for the PxrUsdIn node.

5. On the PxrUsdIn's parameters in the Parameters tab, ensure that the fileName is set to .usd file you downloaded in step 1).

Expected behaviour:

The UVs should be loaded in from the .usd file.

Actual behaviour:

The UVs cannot be loaded in, and the following error message is displayed in the Terminal:

[ERROR Marshall]: Error loading UVs: no value list!

Workaround:

No known workaround.

Tested versions/platforms:

• 3.0v1/Linux - Affected

Customer version/platform:

3.0 RC1