This incident has been resolved.
The machine is currently back online and serving workloads once again. The Railway team will monitor this machine as workloads fully restore. We appreciate your patience.
The team is currently restarting the affected machine and bringing on workloads back in a staged manner, some workloads may continue to be unavailable.
Workloads on one machine hit a IO limit causing workloads to be unreachable for around 1 hour or so. We advise users to trigger a re-deployment if they haven't. For affected legacy plugins, migrating to a V2 database should resolve the issue.