This evening a weird issue was brought to my attention by an educator. While trying to update grades for a particular assignment (using a custom scale (0,0.5,1)), one of the students grades was greyed out and there was no way for us to update grades/feedback for that assignment.
But I could update the grades/feedback by going to the grader report and editing the grades. Although when I try to do the same via the assignment page itself (by viewing submitted assignments), some grades are greyed out and it won't let me.
Any clues as to why this might be happening? I have attached a screenshot. Thank you.