LearnDash Associated Content and Topic Completion

Hi all,

I'm hoping that someone has worked with LearnDash and can advise me on publishing my Storyline 360 courses. I've created my Courses, Lessons, and Topics and uploaded the topics in order, using a consistent naming convention "1. Intro and pre-assessment", "2. What is ___" with the numbers (including the topic numbers).

I've gone into the Lesson Options tab and tried adjusting the lesson settings; currently it's set to sort the courses by Title (ascending). The list of associated content on the lesson page displays in the correct order.

The issue I'm having is that once I launch a course as a learner, the topic completion bar is out of order. For example, one of my courses starts on topic 4, and runs 4, 5, 6, 7, 8, 9, 1, 2, 3. 

Any advice?

Thanks!

Laura