We've confirmed that all systems are back to normal with no customer impact as of 04/11, 12:47 MM UTC. Our logs show the incident started on 04/11, 11:07 UTC and that during the 1 hour & 40 minutes that it took to resolve the issue some of the customers experienced data latency and misfiring alerts in East US region.
Root Cause: The failure was due to one of the back end services.
Incident Timeline: 1 Hour & 40 minutes - 04/11, 11:07 UTC through 04/11, 12:47 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.