After upgrading Continuous Delivery Director (CDD) from an older version to a newer version, the Cycle Time widget appears empty, showing no information. Refreshing the browser and even restarting the service fail to correct the problem.
Clear your web browser's cache. (Steps to do so vary by browser, so please refer to your browser's documentation.)
The widget shows no information because the browser still has cached data from the previous version, thus clearing the cache will remove the outdated data and ensure the widget displays correctly.