Get 100% Quiz, but still marks "Incomplete"

Hello -

I have a course, that has a final Quiz. They must get 100% correct to pass the quiz. If they pass the quiz, the course should mark complete.

I am using the SCORM Test Track Software to test the course - and even after getting 100% correct - I still get a status of incomplete. I do have several other questions in the course, but they are not part of a test, and the score is set to 0.

Does anybody have any idea what I am missing? I have set the Mastery Score to 100% in the settings.