I can run the Storyline course as HTML5. Launched the course and took the quiz, which is set to retake until 80% or greater grade. Retook the entire course on a new day with same machine. When I got to the quiz section, the first few questions showed up okay and I had to answer them and click submit, but after that the remaining questions showed up with the red incorrect or green correct image and I could not select the multiple choices to pick an answer. I could only click submit to go to the next question. What is that?