We have 2 jobs that are scheduled to run hourly every day, but they stopped running at 2 PM ET yesterday. We still have plenty of data left for this period, the jobs are still enabled, and they show next run scheduled for 3 PM ET yesterday. Both jobs are exports from Salesforce and I checked the user record - it is showing successful logins hourly for the last couple of hours, even though the jobs aren't running. Import jobs seem to be running normally.
Jobs are: "Salesforce SPL Export - Production" and "Panurgy - SSL Export"