Welcome to Atlassian Community!
Next-gen Epics does not have the same fields as classic projects, so there are no fields which relate a next-gen Epic to its "Child" issue. This is was an intended behavior when developing this new template to keep the proposal as simple as planned, however, we see now that it is causing some lacks in the export and JQL search functionalities.
That been said, we have created a feature request to change this setting:
Feel free to vote and watch the suggestion to increase its priority and also receive notifications about any updates.
For now, we recommend you to use a custom text field to manually add the Epic reference to the issues.
Let me know if this information helps.
Jira is a powerful tool that helps teams to plan, manage, and report on their work. We love using Jira, especially for its ability to track issue progress. But how to monitor the...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events