That auto-save setting looks to be for Moodle quiz activities rather than SCORM. The reporting delay we monitored between the SCORM and LMS was around 30 seconds.
The way we have tackled this is belt, braces and safety pins! Submit the results twice and explicitly mark course completed/passed on exit after success.
Results slide:
Success layer: add button "Save score and continue" with
Exit slide: add button "Complete course and exit" with
The theory is that on success the player must still be communicating with the LMS to move to the next slide. We save the results on entering the results slide. Then again on moving to next slide and finally explicitly mark as completed/passed when clicking the exit button.
Just fyi, I'm an IT man/developer and have only recently got involved with eLearning in the last few months. Steep learning curve!
