Try each of the following steps in order until the issue is resolved:
  1. In Mail, Forms, Report Cards, open the report card parameter.
  2. On the General tab, ensure the Term filter matches that of the attendance entry on the student record.
  3. On the Details tab, open the Attendance section.
  4. On the Columns tab, open the affected column.
  5. For Column Contents, ensure that the checkbox corresponding to the desired term is marked.
  6. If the Field to show is set to Number of Occurrences, try changing it to Sum of units.
  7. Preview the report card.