Can't see Prometheus matrix for Jenkins agent

[yzaltz]

Using Prometheus 2.54 (accessing by Grafana 11.4).

• I followed this (Jenkins agent monitoring with Prometheus | by Rudolf Horváth | Tresorit Engineering | Medium)) instructions and set-up a jenkins job - that create a plain text html file for Prometheus to consume and provide Jenkins agents health status - endpoint setup and refresh is as expected
  sample line from the file (replaced agent details)
  jenkins_agent_is_connected{agent_name=“”, node_labels=“docker AllWindows “, ip=””} 1
  I’ve configured a job in prometheus.yml that should collect the data - as instructed in the doc

• job_name: ‘jenkins-agents’
  scrape_interval: 5m
  scheme: https
  basic_auth:
  username: {my user}
  passworde_file: {path to token file}
  static_configs:
  • targets: [‘jenkins_base_url’]
    metrics_path: ‘{path to job}/lastSuccessfulBuild/artifact/prometheus’

When I look through Grafana I expected to see the relevant matrixes in Grafana, I see the Job listed under Jobs label but I don’t see the matrixes from the file, instead I see the below matrixes (not found in the file).

Don’t see an error in prometheus
any suggestions?