Sorting for missing assignments not working

[NormanNovotney]

I have an ongoing assignment due in a few days & want to check how submissions are coming along. Under grades, I see the ungraded submitted documents and dashes  (-) for students who have not yet submitted.

LARRY JONES   doc symbol

KATE WILSON    -

MARK VORHART doc symbol

GARY HOPE -

JENNY CRAFT -

GEORGE LAMP -

MICHELLE TONK doc

ROBERT SURGE  doc

RITA HEDGES -

etc,for all 150students, unorganized

How do I sort this to show all the unsubmitted students? Choosing missing assignments sort seems to do nothing

I want to see them organized:

Billy Jetsowl   doc

Mark Kwolnes doc

Wanda Tamacko    -

Larry Milestorm   -

Gorf Varderson -        

Then I can look to the left and see a coherent list of names of those who still need to submit their docs before the assignment closes

[GW4]

I have this same issue. Not exactly sure what the "Sort by" > "Missing" function does (it seems to do nothing). The "Sort by" > "Grade - High to low" or "Grade - Low to high" always seems to do the job. Those without submissions will appear at the bottom on the gradebook column. This feels like one of those features that Instructure/Canvas included but didn't actually code or does something different than what it alludes to. Wasn't able to find the documentation for it here.