Storyline quiz in SCORM 2004 v3 complete or show score

Correct we always have used Completed/Incomplete as we thought that provided the most consistent results. I'am attaching the Storyline file. We didn't develop this particular prokject but were called in to troubleshoot the completion behavior. Terry and II feel that although the pasng score is set to 80% it seems to require 100% to function propelry.  BTW we have a Platnium Membership Plan with Storyline. If you need a serial # to verify let mw know. Thanks!