Focus order for quiz submit button proceeds in an illogical manner

I am using Storyline 3 update 17. I have a multiple choice quiz question and am using the Submit button in the player.  Once the learner chooses their answer you would expect to move next to the Submit button. The Focus order instead moves to “Back to Top”, “Volume”, and “Settings” buttons (on the player) before navigating to the “Submit” button. 

I do not want to create a submit button as my real estate on the slide is tight.

Any way to fix this problem?