Using Moodle 3.3.6: Manually grading a Quiz shows submissions from students that are no longer in the course. Those students were on the course earlier, and their submissions were not graded. Not though the students have been removed ffrmo the course their submissions still show up in the manual grading view. The submissions themselves are not visible when viewing the Quiz report. The students are not visible in any other place in the course than the manual quiz grading view.
I tried searching these forums + the tracker for this issue, but didn't find anything. If this is a known issue, I would appreciate the Tracker link.