Students are seeing assignments that have not yet been graded as 0's. Why don't they show up for students with the paper icon that is in instructor's gradebooks? It would reduce so much panic from students if they saw something other than a 0 on their end! If this is an error due to my institution's setup, please let me know so that I can go and cry to them. If it is something that is due to a configuration on your part, please consider creating a method to denote to students that their assignment has not yet been graded.

Thank you!