If you fail, you click a 'retry assessment' button and it brings you back to the intro page.
We have 'next' and 'back' slide navigation controls turned off because we are using our own custom 'next' and 'back' buttons on the GUI.
On the first pass through the quiz, it works as expected, the 'next' and 'back' slide navigation controls are hidden.
However, oddly, if you fail and click the 'retry assessment' button, on the second pass through the quiz, on the question screens only, the 'next' and 'back' slide navigation controls appear on the GUI!
Any help appreciated!