No errors but data not populating in Grafana

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We currently have an implementation with Grafana & Sitespeed (sitespeedio/sitespeed.io:30.7.0). This is working correctly for our existing test runs, however after setting up a new dashboard I cannot send data to it. I have turned on verbose output and I do not get any errors when running sitespeed:

[2023-12-07 07:47:39] DEBUG: [plugin.pagexray] Generate summary metrics from PageXray
[2023-12-07 07:47:39] DEBUG: [sitespeedio.plugin.graphite] Send data to Graphite graphite.hostname.com:2003
[2023-12-07 07:47:39] VERBOSE: [sitespeedio.plugin.graphite] Sending mock_namespace.desktop.firstView.summary.www_sitespeed_io.chrome.native.pagexray.contentTypes.html.transferSize.median 9785 1701935243
mock_namespace.desktop.firstView.summary.www_sitespeed_io.chrome.native.pagexray.contentTypes.html.transferSize.mean 9785 1701935243
...
...
[2023-12-07 08:06:27] INFO: [sitespeedio.plugin.html] HTML stored in /sitespeed.io/sitespeed-result/firstView/2023-12-07-08-06-07

Grafana Dashboard Variables:

This is using the example Page metrics dashboard provided.

All of the connection settings for Grafana are correct. Any suggestions why this would not be working?

No repository file or test is named. Start by reproducing the Sitespeed 30.7.0 run with verbose output and inspect the Grafana Page metrics dashboard variables and queries alongside the existing working dashboard. Done means data sent through the Graphite endpoint appears in the new dashboard without errors.