Currently, we can see only the date range for Epics that doesn't include the start and end date of the child issues.
Add the date range separately for each child issues.
Next Gen Projects - Roadmaps
Nex Gen Project View : Stories, Tasks & Subtasks should be included in Roadmap view
As a Jira Software user I would like to add any Issue types to the next-gen Roadmap
Ability to see the breakdown of an epic in their tasks (with a + collapsible)