Metrics Addon Not Showing Item Values

I’m using openHab 5.1.1, Zwave devices, and just installed the Metrics addon. When I access /rest/metrics/prometheus, I do see metrics, however, the items are missing their “values”. For example, I have a several outlets that report state (on/off), watts, and amps. I also have some dimmer switches that report their percentage brightness.

None of these values are showing up in the metrics. The documentation says there is no configuration to the Metrics addon.

How do I get the states/values of all my devices into the metrics output for scraping?