Co-worker with newer version of Storyline has courses we cannot open.

A Co-worker of mine has created a course in Storyline with the most recent version. Most of my team is locked into a less recent version (around March). For some reason, when we try to open this course, we get an error message that the course "May have been created in an earlier version of Storyline" (Which of course, it wasn't) Is there anything we can do to get this thing open.

 

The real issue is that things created with the newest version cannot be used with our LMS (which is junk).

 

Please let me know if I have any recourse here. 

 

Thank you, Jerimy