Problem Definition

Some Issue Types, such as Epic and Story, indicate that they should not be edited however there is nothing which prevents that from occurring.

Use case:
Customer edited the Epic Issue Type to "New Type." If viewing an Agile Scrum Backlog, "New Type" is not displayed as Epics are Hidden from the Backlog.

Suggested Solution

Implement a "locking" feature similar to non-editable System Fields to prevent these Issue Types from being edited

Workaround

Update the modified Epic Issue Type back to "Epic" and create a New Issue Type