- Ensure the Time Tracking section is enabled so the users will be able to specify the estimated time and log the spent time.
Read more: Configure time tracking (Atlassian)
- Ensure that Epics are real Epics (not just custom issue type named Epic) provided by Jira Software.
Read more: Learn how to use Epics in Jira Software (Atlassian)
- Ensure that the user performing an operation has the Jira Software license. The app may not retrieve the epic information for users without the Software license as Epics are the Software-specific functionality.