Access denied when resuming quiz

Fixed, but the current question is not stored anywhere, so it defaults to Question 1.

The user's answers however are preserved.

Is there any reason why this would work when I create a new Quiz, but doesn't work when I update an existing Quiz?

I updated from Quiz module from 7.x-4.x to 7.x-5.x, and checked the "Allow Resume" and "Allow Skipping questions". But I still get the following error after logging out, logging back in, and trying to resume the quiz.

You have already taken this quiz 1 time. You may not take it again.

Thanks for any help.

Hi,

I don't think that's the same issue. The max amount of takes is controlled by "Allowed number of attempts" and not skipping/resuming.

However if you find out what "allowed number of attempts" doesn't work, feel free to open an issue.

I'm having the same issue. When setting the max amount of takes it prevents to resume the quiz because it checks against every result (ended and not ended).
At function quiz_start_check($quiz):

$taken = db_query("SELECT COUNT(*) AS takes FROM {quiz_node_results} WHERE uid = :uid AND nid = :nid", array(':uid' => $user->uid, ':nid' => $quiz->nid))->fetchField();

should be replaced by:

$taken = db_query("SELECT COUNT(*) AS takes FROM {quiz_node_results} WHERE uid = :uid AND nid = :nid AND time_end IS NOT NULL", array(':uid' => $user->uid, ':nid' => $quiz->nid))->fetchField();

Will be fixed in #2412389: resume an open take by clicking on the "take" link

Error in quiz_take_page when
$_SESSION['quiz'][$quiz_result->nid]['current'] =1
But in quiz_access_question we have

if (!$quiz->backwards_navigation) {
    // No backwards navigation.
    if (quiz_result_is_question_answered($quiz_result, $question_node)) {
      // Already have an answer for the requested question.
      return FALSE;
    }
  }

And that mean if backwards navigation is disabled and we already answered on this question number "1", this function return FALSE.

As solution:
$_SESSION['quiz'][$quiz_result->nid]['current'] = quiz_result_get_resume_next_question($quiz_result->result_id);
and

function quiz_result_get_resume_next_question($result_id) {
  $last = 0;
  
  $sql = 'SELECT display_number from {quiz_node_results_answers} WHERE result_id = :result_id AND answer_timestamp IS NOT NULL ORDER BY display_number DESC LIMIT 1';
  $result = db_query($sql, array(':result_id' => $result_id));
  
  if($result) $last = $result->fetchField();
  return $last + 1;
}

This issue was already fixed in 5.x-dev, please open a new issue with steps to reproduce.