Python Transforms build failing at :renderShrinkwrap

I’m trying to connect an external REST API to Foundry using a Python Transforms Code Repository and an imported Data Connection source.

I’m using transforms-external-systems to access the REST source from the transform. I initially had a missing dependency issue, but that appears to be resolved. The repository now successfully resolves the dependency graph, including transforms-external-systems=0.1337.0.

The build progresses successfully through pythonRenderDependencyGraph and dependency resolution, but subsequently fails at:

:renderShrinkwrap FAILED

RemoteException: INTERNAL

HTTP status: 500

Failure instance ID:
41af927b-55cd-4f40-b70e-82aaa8613a4f

Repository RID:
ri.stemma.main.repository.8612d003-2e77-4df7-8596-cfc2f3bb27fa

My meta.yml includes:

requirements:

run:

- python

- transforms {{ PYTHON_TRANSFORMS_VERSION }}

- transforms-expectations

- transforms-preview

- transforms-verbs

- foundry-transforms-lib-python

- transforms-external-systems

transforms-external-systems also shows as successfully installed in the Code Repository Libraries panel.

I’ve retried the build multiple times and continue to receive the server-side 500 specifically during renderShrinkwrap.

Has anyone encountered this failure at the shrinkwrap stage? Is there anything repository-side that can cause renderShrinkwrap to return an HTTP 500 after the dependency graph has already resolved successfully, or does this generally require Foundry support/platform-side investigation?

Happy to provide additional build logs if useful.