Audio does not resume when user resumes course in LMS

I have not created any triggers for this course. I just published it to LMS. When I stop the course, my LMS tells me it is in progress. When I try to resume the course, I get:

If the training doesn't load, click here to open it.

I click the link and it resumes from where I left off (sans audio). The play button turns into the pause button since it starts playing automatically.