These will appear regardless of the current calendar warning settings. This is caused by a sub-Calendar that has a validity period which is shorter than the validity period of the default Calendar. Specifically, static keywords are affected.
Cause type: By design Root Cause: Sub-Calendar has a smaller validity period than the default one. This affects static keywords.
Resolution
This field was added on 30/03/2017. This article has not been updated yet. Refer to the "Description" or "Workaround" sections for solution information.
Fix Status: No Fix
Additional Information
Workaround : Manually change the validity period of the sub-Calendar causing the problem.