Jira version 8.6.1
When you add a new custom field to an Issue type - the existing issues do not inherit the new custom field. I know for an issue you can click configure and check the box next to the field, however if you have 500 existing Issues that are not displaying the new custom fields how do you get the 500 existing Issues to display the new custom field?
The behavior I have seen is when I add a new custom field or add a new constraint I can only see the new custom field or constraint when I create a new Issue. The existing issues do not automatically inherit the new custom fields or constraints.