I need to pull all of the tickets an old employee worked on while at the company. I have not deleted the user, but simply blocked their access. When I search their name in Advanced search I get this error, "The value '...' does not exist for the field 'assignee'. There must be historical information stored in Jira, so I don't understand why I can't look up previous work from this user. I have also tried filtering it down to a specific project I know they worked on, but it's still not working. Assignee was functions also do not work.