I have a similar problem as the above member. My students are completing their work and are submitting their work to me (I watch them as they do it on DyKnow) but I am not seeing them in Speedgrader. Where are the documents going? Can I find them in another place? Thank you.
I'm including a could of guides for you both here to help you navigate SpeedGrader. I would first check to see that you have enabled the document "types" you allow your students to submit: https://community.canvaslms.com/t5/Instructor-Guide/What-types-of-files-can-be-previewed-in-Canvas/t...
I'm not personally familiar with "DyKnow", but here is the how to guide for grading submissions with file uploads for Canvas.
Your canvas friend, : ) Heather