Sporadic bundle forwarding issue in BPv7 ION interoperability test
See, e.g., this pipeline: https://gitlab.com/d3tn/ud3tn/-/jobs/3751745636 (Note that the "TCP: System error" occurs on test termination due to the CI script killing ION and has nothing to do with the issue.)
Somehow ION does not always forward the bundles properly to the 2nd uD3TN instance. We need to check what causes this. Potentially an update of ION (#116 (closed)) can help already.