Hello All--I hope someone can help me with this issue. I am an instructor. I've had no problems using Canvas for about a year now, and suddenly I have a couple of students reaching out to me that they can't find the comments I've made on their papers. The blue speech bubbles are in the places where I put the comments, but when they click on the bubble, there are no comments. I myself looked back into the speedgrader and indeed some of the comments are missing (not all). And it only happened with two students--the other students' comments were fine. Can anyone explain this? Thanks in advance.