by Chris Nelson.
I believe I have found the issue, I also discovered additional video files amounting to a total of over the 3 GB limit. I have spoken with the instructor and have asked them to set a limit on the video uploads of 50MB max. And they will also inform the students to keep their videos under the 50MB limit. The videos are only supposed to be 5 minutes in length.
A big thank you Ken for pointing me in the right direction. You've been extremely helpful.