When using board view, I can see the person assigned to an item but cannot reassign it.
Example:
I have a team mate called Cason. If I click the assignee and type 'cas' into search, I only get 'Unassigned' and 'Automatic' as options.
If I open the item and do the same in the side panel, I see Cason as an available assignee.

Do I need to configure the available assignees somewhere?