The fix has been applied and this incident is resovled.
Posted Dec 07, 2018 - 22:50 PST
Identified
On API Sandbox, DataSource Export, AQuA, Sync, Reporting jobs created from Dec 7th 2018 1:45AM PT to Dec 7th 2018 10:15AM PT were delayed, root cause is identified and we are working on fix those delayed jobs.