Multi Matte AOVs not rendering

Omniverse General Discussion
1

Hello,

Could you please list the steps to get MultiMatte to render as Path Trace AOVs?
Currently I’m not able to render MultiMatte AOVs in Create 2022.3.1 - the result is just black image with each channel being black.

Steps I do to try to render Multimatte:

  1. Right Click Scene → Create → AOV
  2. Add Camera in AOV → RenderView
  3. Select each object → Property → Multimatte ID → set ID (1, 2, 3 for example - each number for each object)
  4. Render Setting Path Trace → Multimatte → Channel Count 3 → Red 1, Green 2, Blue 3
  5. Movie Capture → Path Trace → Use Render Product → /Render/RenderView
  6. Output as EXR, HDR with alpha
  7. Render Sequence

Tried with adaptive sampling off and on - the AOV file Capture.0001_PtMultiMatte0.exr is just rendered black