Hello @cwatson5 ...
Give this a try... in your course, go to "Settings", click on the "Sections" tab, and then under "Course Sections", click on the name of the section that has all your enrollments. Under "Current Enrollments", you should see a "Student, Test" role with a string of random letters and numbers. Hover your mouse over the "Student, Test" user, and you should see a red and white "X" icon (if not, you'll need to ask your school's local Canvas administrator to do this for you). Click on the "X" to remove "Student, Test". Just be aware that the next time you use the Test Student role, it will add "Student, Test" back to this area. Are you now able to unpublish your quiz?
I hope this will help a bit. Sing out if you have any other questions about this...thanks! Take care, stay safe, and be well.
This discussion post is outdated and has been archived. Please use the Community question forums and official documentation for the most current and accurate information.