Grading with Kamy with Google Slides assignment

I create google slide assignments and push it out using Google Classroom where my students make their own copy. When my student submits the assignment, I open it up to review it on Google Classroom and I press thee K (Kamy) to grade and mark on it, then I press save. My obstacle is why can’t my students see what I marked up and annotated when I return the assignment back at Google Classroom? Please help?