Only one thus far. 
Feature related fields are displayed as field ID in JQL search
When you include Feature related fields to your JQL search, they are displayed as field name but when you select them, they are displayed as field ID.
This limitation is caused by Atlassian, and relates to this ticket with Atlassian. As soon as Atlassian resolves the ticket, we will be able to display field names in the search field as well. The good news is that we managed to make it so that epic is not displayed.
| What you search | What Jira displays |
|---|---|
|
|
|
|
