Support Staff Assignments

When Academic Planners are entering in support assignments, if a support staff has entered preferences for a course, it doesn't allow you to lock in the assignment. Chemistry - Summer Session 1 2017-18 - Support Staff Bryan Owens-Baird has a top preference for CHE 124A -001 (TA). Bryan has entered comments to that course, but I am unable to assign him his top preference in the "By Support Staff View".

When I view "By Course" and go to assign one of my 50% TA appointments, Bryan does not show up on the list of available support staff to choose for that assignment. Bryan was assigned a course, but his support call was deleted and resent multiple times.