Better in-Course Quiz layout

Hi there, we would love to use in-course quizzes to make the user experience even more painless, but the reason we have not for the past two years is that the layout of in-course quizzes appears to be confusing for users. https://cl.ly/79b457 https://www.youtube.com/watch?v=U5q2FANx_Sc   We tested it and most users do not see the option to move to the next pages of the quiz and assume the quiz is over within the first page. Sure, there is the error message that pops up, but most people also ignore those. And, anyway, I believe the best approach to user experience is to make it super easy for the user to use a feature, rather than add warnings for errors. Do you agree? Is there a way to multi pages of an in-course quiz could be made easier to access? For example, could the quiz automatically load the second page etc once all answers on the first page are anwered? An easier approach would be to move to multi page indication to the bottom bar, which is bigger and people are already looking at it because of the START and SUBMIT button! Cheers!