I think the main issue is that in the template is no Datasource defined and it takes always the first one that's available. To fix this, at least I think, click on the Gear icon on the PiHole Dashboard, then click on JSON Model, press CTRL +F and click on the little down arrow and enter at the top: "datasource": null, and on the bottom: "datasource": "Prometheus", and then click on the second symbol in the second row to replace all occurrences and after that make sure that you
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