Unable to view previous quiz attempts
How to reproduce:
- Enable ability to view previous quiz attempts in options
- Take z quiz attempt
- View your attempt (it is ok now)
- Go to another lesson or any other link
- Come back again to the quiz page
- Try to view attempt (displays 0 only as in attached screenshot)

Interesting thing is that after another attempt I am able to see my previous attempts as long as I stay in this Quiz lesson. Changing lesson causes all attempts to be unavailable.
@ziobron Yes, i just had same issue, for some reason after hard reloading (ctrl + R) twice, able to see the Quiz Attempt.
Hey hi @ziobron, After struggling for a week, i have found the solution for above mentioned issue.
To solve it, please follow following steps.
- Go to plugins/tutor-pro/classes/Quiz.php
- update the code in public function add_attempts_tbody_col($attempt).
echo '<a href="'. esc_url( add_query_arg(array('view_quiz_attempt_id' => $attempt->attempt_id), get_permalink() ) ).'">'.__('View Attempt', 'tutor-pro').'</a>';
i hope this will solve your issue as well.