Motion Path does not work from USD Composer 2023.2.3

[masahiro.suzuoki]

Hi, it looks motion path does not work from USD Composer 2023.2.3.
I tested both 2023.2.4 and 2023.2.5 and both have the same result.
This can be confirmed in several environments so I think this is not regarding
environment.

[How to reproduce]

1. Create Cube
2. Create BasicCurve
3. Add Motion Path to Cube
4. Assign created BasicCurve to Cube
5. Curve is not assigned to Cube and we can confirm the error in Console

[Investigation]

• “import USD prim data” does not exist in Action Graph.
• This occurs by omni.graph.io 1.6.0.
  If we apply omni.graph.io 1.5.1, we can confirm “import USD prim data” in Action Graph.
  But motion path itself does not work.
• It looks “Ogn****Database.py” files do not exist in omni\graph\io\ogn.
  We can find these files in case of 1.5.1.
  But from Kit log file, we are unclear whether this is root cause or no because
  even if we copy these files into omni.graph.io 1.6.0, import USD prim data is not shown in
  Action Graph.

Please confirm attached screen shot of file explorer.

• Screen Shot : Omni.Graph.IO.png
  
  
• Error Log : kit_20240318_192750.log
  kit_20240318_192750.log (3.9 KB)

===

Masahiro Suzuoki

[Richard3D]

Ok so you are correct. We have confirmed that we replaced “import usd prim data” omni graph node with “Read Prim” node. Sadly this appears to have broken the Motion Path system unexpectedly in 2023.3 onwards. It does work in 2023.2 and I am verifying this. We apologize and we will get it fixed.