Hello there! I work with a number of sites that utilize Grafana for measuring metrics for performance & after recent updates to Grafana v8.3.4 (a551d74b11) I’ve noticed that all of our alert rules state that the plugin is unavailable and are in an alerting status. I had changed over to the unified alerting method but that did not help us out any bit & our conf is set to allow the unsigned simpod plugin also.
Are you using a reverse proxy? If so, this might be relevant to your problem. Timing is right: