When a student is moved to a different section, or removed from a section while remaining enrolled in the course, any assignments they have submitted or quizzes they have completed disappear from the Gradebook. This occurs because the affected assignments are assigned to specific sections ("Assigned to"), and the student's new section is not included in that assignment.
I understand that this is expected behaviour in part: if the student has not yet completed the assignment, it makes sense that it would no longer appear. However, for an assignment that has already been completed and graded, the grade should remain visible.
Part of the problem is that when a student is moved or removed from a section, there is no warning that the student has already submitted work and been graded on assignments tied to their original section.
A further issue, which I consider a bug, is that teacher comments left in SpeedGrader for the assignment remain visible for the moved student, even though the grade and submission no longer appear.
Do other institutions experience this problem?