We had some issues in one of our components (job handling queue) between 10pm and 10:15pm PST on Sunday night (03:00–03:15 UTC Monday). That had resulted in some failed orchestrations (scheduled at that time or starting it's tasks at that time) . We're planning to upgrade the component in the coming weeks, but if the error occurs again, we'll upgrade it immediately. The upgrade will be accompanied with a short maintenance downtime.
We're sorry for any inconvenience.