Interchange Framework - Missing References on Animation Import with Python Pipelines

Hello,

I'm using Interchange in a UE5.5.4 project with my Pipeline Stack containing a copy of the DefaultAssetPipeline and a custom Python Pipeline.

When importing my Animation with only the DefaultAssetPipeline and checking the Reference Viewer, it references the Skeleton correctly. As soon as I add a Python Pipeline to the Stack, imported Animation does not contain the References anymore.

My Python Pipeline is completely empty, other than a print to ensure it's running.

I attached a [Link Removed] to demo the debug process.

Steps to Reproduce

1. Created a new Project in UE5.5.6 / UE5.6
2. Import [Link Removed]
3. create Interchange Python Pipeline, NewInterchangePythonPipeline, using the class defined in the Python script
4. Open Project Settings -> Interchange
5. Setup a Custom Pipeline Stack Preset with DefaultAssetPipeline + NewInterchangePythonPipeline
6. Imported [Link Removed] as a skeletal mesh
7. Save Cube and Cube_Skeleton assets
8. Import [Link Removed] as animation only and reference previously imported skeleton, Cube_Skeleton 
9. Save Cube_Anim anim sequence asset
10. Right click on Cube_Anim -> Reference Viewer -> shows no references