Are you able to update your Jenkins to at least v2.426.3? Then you can try the new plugin version, which was released yesterday.

still an issue with jenkins v2.452.3 and plugin version 111. 

ok, i've never looked at a jenkins plugin really this deep. Took a blessing from god to get it to build on redhat 9 because i guess the tools are just so old)

anyway, finally got it to build and seems the issue is the Build Results scoring is skipped because the subtask is not derived from AbstractProject, it is a PlaceholderTask.  I can't understand how to go from a place holder task to a Build object to traverse the latest builds to update the scoring.

i guess perhaps this plugin for build result scoring only works on freestyle jobs?  the whole workflow/pipeline api looks quite different. I have no idea how to get the build result or node name from the various WorkflowJob and WorkflowRun classes.  

I was hoping to pull the node from getLastBuiltOn().getNodeName() but it's blank in my testing. Assume one has to better traverse the children to find the correct class but I can't find any documentation on the java/jenkins classes.

These looked really promising, but couldn't figure it all out.

https://stackoverflow.com/questions/78705046/how-to-get-hudson-model-node-from-org-jenkinsci-plugins-workflow-job-workflow

https://community.jenkins.io/t/how-to-check-the-build-queue-for-an-existing-job-name/12554/4

Finally figured it out, created a PR https://github.com/jenkinsci/scoring-load-balancer-plugin/pull/65 that works at least for me to enable Build Result scoring on pipeline jobs.