I had started Quiz-6 and had quit in between before the stipulated time. I had not submitted/finished the quiz. Now i am not able to continue the quiz. I get a message - You cannot attempt Quiz-6 (Self Learning) quiz more than 1 time(s), eventhough i had not submitted the quiz. The status in the dashboard for Quiz-6 is showing "Inprogress", with 80% progress for section - Exceptions.
You can't come back to the quiz once started and the given time is over. Whatever inputs/submission you've made are saved and the result would be given based on that.