Attendance Grades

[KendraChaney]

I created the roll call attendance assignment, weighted it by creating a group for it, but the grades are not showing up in my gradebook. I take attendance every class period. The submission is set to external link, I have the available dates set to the start and end date of the class. There is no submission required and no due date set. Is that the problem? the only student who has a grade showing up is the one who took the class last semester.