The issue has been resolved and all systems are fully operational. This afternoon we experienced an increase in traffic to our servers - our systems correctly responded by auto-scaling to meet demand but the request queues that were currently running became overwhelmed and stopped accepting new requests.
We have identified the cause of the stuck requests and have a fix in place to prevent this from causing service disruption should it occur again.
Apologies for any inconvenience caused, if you are still experiencing issues please reach out to firstname.lastname@example.org
or via the messenger on your dashboard and we'll be happy to assist.