Viewing overdue Tickets in the Project Calendar View for a Specific Epic

These are the filters I have selected. I want to be able to view all overdue child issues under a specific epic. If I search for the epic key, it doesn't display its child issues.

Thank you for that additional information. 

This filter

...is telling the system to display only the issues of type Epic. So you combined filter selections are filtering for overdue Epics. That is why no child issues are displaying.

If you want to filter for overdue child issues for specific Epics, you need to remove that Type filter and instead add a filter for Parent.

The select the Epics for which you want to see the overdue child issues.

Awesome! Thanks that helped!

@Trudy P Claspill Can I see subtasks using this method? Or do I have to repeatedly use the parent filter and select the stories and tasks under the particular epic to see the subtasks within the epic?

When using the Parent field and the Epic issue keys you will not see the subtasks under the child stories of the Epic. The Parent of the subtask is the child story. You would have to also select the issue keys for the child stories when filtering for Parent in order to get their subtasks to display.

In the View All Issues screen you can get both child issues and subtasks that are overdue under an epic with this JQL:

project=project and duedate is not empty and duedate < startofday() and linkedissue=EpicIssueKey