For those who were still looking, here is the FAQ entry relative to this issue:
https://docs.moodle.org/28/en/Quiz_FAQ#How_can_a_.22Never_submitted_quiz.22_be_submitted.3F
For those who were still looking, here is the FAQ entry relative to this issue:
https://docs.moodle.org/28/en/Quiz_FAQ#How_can_a_.22Never_submitted_quiz.22_be_submitted.3F