Thanks Emma - "throws the database into total disarray" seems to describe it. I can't see how to delete the assignment from View/Grade All Submissions. Every student that has not been assigned to a group is in 'default group' with a file uploaded, but 'No Submission' status. (Another annoyance is that I can't filter by 'default group' or sort by Group to easily locate these students). Clicking on the Assignment goes to Comments - with no option for resubmission regardless of whether I allow an extension, another attempt etc. The student who actually submitted the assignment but is now in a group has "Submitted for grading" status with no file upload and also gets redirected to Comments (for which as a student she does not have permissions) when she tries to view the assignment.
A tracker issue would be great but I am not sure what to raise:
- Most disturbing for me is "you can't add comments" error for students who click on the assignment.
- As an Administrator I would like to be able to delete the "default group" submission. As I understand from https://moodle.org/mod/forum/discuss.php?d=216399 the existence of the "default group" is a consequence of the Teacher choosing "grouping for student groups". (This is not what she intended. All her students should have been in groups. Students who were not assigned to groups should not have been able to make submissions until assigned to a group).
- Given that "default group" exists I would like to be able to filter View/Grade All Submissions by "default group" or sort by groups.
I am going to move all students who are mistakenly not assigned to groups to a "no group" group and see if this helps at all.