This issue needs to be tested in a 5.0 or 5.1dev site. It only needs to be tested in 1 device. You will need a course that has a question bank activity. All courses that have questions should have this activity, most of the courses in our main site has it because our backups included questions even if the activities of that course don't use questions. An easy way to check if a course has the question bank activity is to open the course in the 4.5 version of the app, in that version you should see the activity. As a teacher (or site admin) open the course in the 5.0dev version of the app (downloaded from deployer). Check that you don't see the question bank activity in the course. Open the first activity in the course. Check that you cannot use the "Previous activity" button to go to the question bank. Add the Activities block in the course and view it in the app. Check that you don't see Question banks in the Activities block.