The default setting in LaunchPad is to hide past-due assignments. This means that only future assignments are visible to you and your students. One way to reveal homework assignments (and the units in which the assignments are located), is to click on the Show past due link.
Click Instructor Console in the left-hand menu of your LaunchPad course home page.
Go to the "Instructor Console"
Collapse past due items by default
First, click on Launch Pad in the left-hand menu.
You’ll see an option to Collapse past-due items by default. When this box is checked, past-due items will be automatically hidden.
If you uncheck the box and click Save, all assignments from the course will be automatically shown to students, regardless of whether the due date has passed.