My students have completed an array of assignments already but no matter what I put in, grades for each student show as 0% total in the total grade column. Why is this? When I navigate to my assignments portion of Canvas, some of the "assignment type" categories (such as "imported," "homework," etc are showing as 0% of the total). How can this be changed? This is only an issue in one of my shells, and not the others. Any advice appreciated.