Unable to Trigger Downstream Jenkins Job Based on the Promoted Builds Plugin
Job chaining is a CI/CD anti-pattern and one of the big drivers behind developing pipelines. If the next step in the equation is to do more work, just make it a stage in the pipeline. If you need separation for whatever reason, make the freestyle job a pipeline job and add a post->success step.

https://jenkins.io/doc/book/pipeline/syntax/#post