Happy to do what I can to get you up and running!
Reviewing other similar issues, it would seem that this indicates our proxy is having difficulty connecting to your app. It’s also possible that the different regions displayed in your logs indicate the same thing.
I’d definitely recommend double-checking your fly.toml against your deploy logs (which you can run at LOG_LEVEL=debug for more verbosity) to ensure that your app is configured to listen on the right ports and binding to the right IP address.
I hope this helps-- please let us know if you’re stuck; we’re always happy to take a closer look.