We have a custom issue type "Meeting," when using search and setting Type to "Meeting" two issues show up. But adding the Assignee to a specific person in the search makes the search return 0 results. Also if I have everything set to all and just select the assignee as a specific person, none of the issues of this type show up.
Why is this issues type not showing up in searches with the specific assignee?
Attached, is the search with only the issue type selected, and then with the issue type and one of the assignees selected.
[Edited screen shots to show the Advanced query]
Using basic search and selecting only the Issue Type "Meeting" this is the result:

Now simply selecting the assignee of issue WR-78 (indicated the same in blue) I receive no results:

