Issue
Instructors are unable to view all pages of a submitted document in SpeedGrader. For example, SpeedGrader will only allow the instructor to see the first 3 pages of a 5 page document submitted by the student.
Fix - RESOLVED
Unfortunately, there is no fix at this time. This is a behavior the Canvas engineering team is working on to correct the root behavior. There is no estimated time of completion for this.
This issue has been resolved by Canvas engineers. Please visit the related Canvas Known Issues article for additional information.
Workaround
This issue appears to be related to SpeedGrader and but instructors can see the entire document when downloaded.
A quick way to do this is by clicking the menu beside the column title and selecting Download Submissions. This will download all papers at once into a zip file.
When ready, you are then be able to Re-Upload Submissions.