How to get the retake quiz function to work when exported to HTML 5 - Captivate 9

We have created some e-learning courses in Adobe Captivate to be run on an LMS on behalf of a client. The courses contain a test at the end which the learner has to complete to continue. We are exporting these as HTML5 to SCORM settings.

The courses are all but complete, but for one glitch. On the end slide, if the learner has failed the test, they press the 'retake' button and it takes them to the beginning of the test to try again, but the test fields are still filled with their previous answers and they are unable to retake it.

This is not a problem when we export to SWF, only HTML.

Is this a common problem? How can we go about resolving it? Is there a way to add a custom action to the retake button to clear the form and jump to the beginning of the quiz perhaps. At the moment, we have it set to 'jump to slide'...(the first quiz slide).

Thanks