Launch logic for Articulate SCORMs

Hello, 

I am using LearnUpon LMS. (I work for LU) The behavior is best demonstrated when replacing the SCORM file with another slightly different Articulate SCORM file. Then again, sometimes it happens without this action, but I think it's best to focus on this scenario because it's what our customers have run into lately.  

I understand that if there's a fundamental change in the SCORM, and it's replaced, then there could be unintended consequences. We advise our customers never to replace a SCORM with major structural changes because it could cause issues. The strange thing is, no one is making major structural changes and the issue is present.

When the lesson_location and suspend_data is cleared for a User, the Course is then able to launch. But I think there needs to be a function in the launch logic that if you can't find the correct lesson location, start at the beginning. Instead, it seems to be stalling. 

The reason I have this conclusion is because I have also tested replacing the SCORM with a completely different SCORM file, like the Golf SCORM for example, and the Course launches fine. The suspend data and lesson location is overwritten. I did open a support ticket, but I'm curious if the community has other thoughts/experience. Thank you.