I created (several) assignments that use "online" and "file uploads" as the submission type and have saved and published them. This is not a turnitin assignment and I did not restrict the file types. The students don't have a submit button and can't submit their assignment. I created these BEFORE I published the course. The assignments I created AFTER I published the course worked just fine and included a submission button. I can't seem to find any guidance on this.