Thank you  @HarshPachouri  for adding the screenshot, I should have done that as well. You are 100% right: this is NOT the slides I am talking about, these are SCORM documents. I am reading them at a normal pace, and when I reach the end, there is no notification that my reading is done or anything. After closing the document and going back to the class index, it is marked as "In progress". I tried to refresh, log out and back in, to no avail.

I added an attachment this time, hopefully to make it clearer 🙂