Quoting alertmanager@hetzner-nbg1-02.torproject.org (2023-07-27 00:05:59)

Time: 2023-07-26 22:05:14.934296434 +0000 UTC Summary: Too many bridges are dysfuntional Description: The fraction of functional bridges is too low for rdsys

Looking at grafana it seems for 1 hour rdsys was ignoring funcional bridges. I'm not sure how did this happen, it looks like both the backend and bridgestrap has being running for the last 6 days (since polyanthium got restarted). But anyway I think is safe to ignore as long as it doesn't happen frequently.