You may find that an Articulate Storyline course is marked Incomplete in an LMS when the following conditions are true:
- The course is being tracked by the number of slides viewed.
- You're viewing the HTML5 version of the course.
- You exit and resume the course at least once.
This issue was corrected in Update 6 for Storyline. To take advantage of the new features and fixes, download and install the latest version from the link in your product confirmation email or get it here, then republish your course.