This incident has been resolved.

A fix has been implemented and we are monitoring the results.

Cloudflare is investigating issues with Workers Cron Triggers. Customers who have recently created or modified a Cron Trigger schedule may find that the schedule is not executing as expected. Pre-existing Cron Trigger schedules that have not been recently modified are not affected. We are working to identify the cause and mitigate this problem. More updates to follow shortly.