@sjsiena
I can't necessarily help with the exact question, but tell them to look at their grades on a computer. If they are seeing the same thing on the computer, then it would be nice to see a picture of what they are seeing on the grade page on the computer. I have seen in my csv download that there are different letter grades for the different columns based on all the different types of final scores we have for the course.
My experience (very limited because I do not look at Canvas through the phone app) is that the phone app does not work great for viewing grades(that is some things may not display the same).
I always tell my students to use a computer to view their grades. I can see an exact student view on the computer, so i know what they should be seeing.
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