Hi Ysa F ,
Thank you for your question!
I'm afraid, it is not possible to show only failed questions from the previous quiz attempt on the next quiz attempt.
As a workaround, you can add several attempts for questions and add negative scores for incorrect attempts, so your users can still pass the quiz, but get less points depending on how many answer attempts they take. See the screenshot attached for reference.
You can also see this article for more information: https://docs.ispringsolutions.com/display/QM10/Applying+Penalties
However, I will pass your message to our developers as a feature request. We will keep track of similar requests and see if we can implement this feature in our future updates.
You are also very welcome to leave your feedback for our developers here:
Hope this helps!