It seems to work fine if I am already in a course but then it shuts down completely when I try to switch courses.
Could you give us some more information regarding your issue.
For example, the build version of the application, some information regarding your tablet (Version, model and make).
Some screenshot would be amazing, so we can try reproduce on our end.
Tablet is FireOS 5.3.2.1
App Version 2.9_3719383_release-release_week19.1
It would be amazing if I could send a screen shot from this device since it has never worked when I have tried to take one from it. Not too mention the only thing you would see if my home page since the app is closed. Which is the issue.