Service Function creation fails on Logical SFF tests of SFC full deploy suite

https://logs.opendaylight.org/releng/vex-yul-odl-jenkins-1/sfc-csit-3node-docker-full-deploy-all-oxygen/269/robot-plugin/log.html.gz#s1-s1-s4-t1

Only happens in Oxygen. No meaningful SFC code changes in the time frame this started failing. There is nothing in the logs that clearly explain the issue.