Tips 2

• Use Student View - Access it in courses you teach on the Home page or under course Settings via the right-side menu.  You can use the test student account specific to your course to preview the student experience of most course content (test students cannot use some tools, e. g. Collaborations and Conferences) without ever having to log out.
  Read more at Canvas Guides. Links to an external site.

• Double check modules' published status - If some content item (file, assignment, etc.) is included in an unpublished module, student are not allowed to view it even if the content itself is published.