Need to know if I can revert my gradebook to a previous time to check the grades of a student who has left the class.
You can view the grades of students removed from your course under specific conditions. Learn how at............
You might also want to check out this resource to better understand concluded and inactive enrollments: Canvas Enrollment Status Comparison.
You may want to start a discussion with your Canvas Admin concerning how students are removed from courses at your institution.
I hope this is helpful,
Depending upon your access you may have access to the test or beta environments, if not I would encourage you to reach out to your admin to see if they have access. Once a student has been removed from a course or un-enrolled their work/grades will not display. If they were added back or re-enrolled the work would populate again.
Retrieving data ...