We've confirmed that all systems are back to normal with no customer impact as of 08/18, 12:45 UTC. Our logs show the incident started on 08/18, 11:20 UTC and that during the 1 hours 25 minutes that it took to resolve the issue customers using non-retrying SDK's close to North Europe geographically region could have experienced up to 6.5% data loss.
Root Cause: The failure was due to one of our backend service.
Incident Timeline: 1 Hours & 20 minutes - 08/18, 11:20 UTC through 08/18, 12:45 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.