I am unable to add a rubric to one of my assignments. I have done it before but am having trouble doing it now. I read the instructions over again thinking maybe I was missing something but the add rubric button is simply gone. I recently created new groups in Grading to keep organized as our school has just recently allowed us to upload our grades to Skyward (which I have not done just yet). Maybe that has something to do with my inability to add a rubric?

Please let me know what I can do to fix this issue!