Views:
Description:

If you add an additional column of Leaving Date to the Students page and try to sort the column when the list contains a mix of students who have and don't have leaving dates, the column doesn't sort the dates in the correct order.

Replication Steps:

Students > Search Filters > Leave the status as On Roll > Change the Active Date Filter range to a date range that will include some leaver students > Add an additional column to the student list for Leaving Date > Sort the Leaving Date column both ascending and descending > The column doesn't sort the dates in the correct order