After reviewing this incident with the Microsoft Azure OSS (Operations support systems) team, the issue seemed to have been related to a 30 minutes outage between our Virtual Network and the Azure DNS (from between 1:45 pm and 2:15 pm EST or 18:45 and 19:15 UTC).
Based on the recommendations we were given, our operations team has made some initial configuration adjustments that should prevent this issue from re-occurring in the future. We’re also investigating and implementing additional fallbacks to continue to ensure the highest system availability possible.
We apologize for the inconvenience this may have caused to your operations, your fulfilment teams, and your end consumers.