We've confirmed that all systems are back to normal with no customer impact as of 11/22, 07:57 UTC. Our logs show the incident started on 11/22, 07:14 UTC and that during the 43 minutes that it took to resolve the issue some of the customers using Azure Alerts may have experienced missed or delayed alerts and notifications in China Gov Cloud and US gov Cloud.
Root Cause: The failure was due to an issue with dependent backend service.
Incident Timeline: 43 minutes - 11/22, 07:14 UTC through 11/22, 07:57 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.