I transferred my class from last year and am setting up my next years summer assignment. Everything appears to be working smoothly on the transfer except that the students don't have a submit assignment button on the assignments. When I go look at the assignments in student view, the button is there. The assignment is due on August 20th of 2018 (in the future) and the start date is in March of 2018 (the past). The course is published and all the assignments show a green check mark as though everything is good. Any ideas?