Summary
When you configure your folder browser to display a Date-type field as a column, the column displays the values as strings instead of in __/__/___ format.
Cause
This issue can occur if you have a second template with a Character-type field with the same name as the Date-type field in your first template.
Resolution
Locate the template definition with the character-type field and either rename the field or change the field type to a Date field.