When I fix audio etc, the app versions does not update even after I restart the app and or phone. Solid internet connection.
Do you mean logging out and in again? I understand it is the key to get all updates of the courses.
actually no, just restarting the app. I will try logging out.
if the course is downloaded to your device, you need to re-download it, then it will be updated.
If you log out, you lose the downloaded course anyway 
sure but my way you don’t need to log out and lose all the rest 
This should be fixed imo. I don’t even download the course, but I still have to log out to update! Really annoying.
Sometimes the changes might not kick in automatically.
What you can do is try to rearrange the level order of the course (move level 2 position to level 1 or vice versa and then back to original) or add then delete a word in the course.
This will cause the course to automatically update and should fix the issue.