I also emailed support about this but I guess support is not available in the weekend.
I have three process groups: app, worker, scheduler. Sep 1 at 1:00AM CEST our uptime checks started failing. I checked fly status and our app process group is gone.
fly m list shows 3 machines, but one is stopped and looks kinda weird. The image there is just a “:” string, and “Created” field is 1970: