Totara Learn Open Discussions

We have some courses that are graded and require a percentage to be shown in the Course Completion report, and then we have courses that are simply complete/incomplete. For those complete/incomplete courses, we do not want a 0% to be showing in the Course Completion report. In v17, if we changed the grade weight to "0" in the gradebook, and then in the Course Completion report, the grade would show as a dash ("-"), which is exactly what we wanted. Now in v19 with the same gradebook settings, the Course Completion report shows 0% or 0.000. Is there a way to get the Course Completion report to show a "-" again for our complete/incomplete courses?