On December 8th, we experienced an issue that affected application publishing. This resulted in users being unable to publish any applications in the Development stage across all regions, encountering the error code OS-DPL-40802 (Deployment timeout).
The root cause of the incident was a new version of an internal service that was deployed around the same time the problem started. This new version contained changes that caused application deployments to fail.
The issue was resolved by reverting the internal service to the previous stable version.