Can't get Retry Incorrect Only option to work

I can't seem to get this retry incorrect quiz questions option to work.

I enabled the "reset only incorrect questions" checkbox on the Reset Results trigger. The button is on the failure layer so only shows if learners fail. I think this is the only thing that needs to be done to enable this feature but when I click the button nothing happens.

I created the quiz questions using the Freeform method and the questions are distributed throughout the course - does this make a difference? 

 

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