What are the things that affect resume where you left off and suspend_data?

Looks like you’ve tried the solution I’m about to recommend  Rocio and are not seeing complete success.   I had this problem some time ago, was publishing to SCORM 1.2, and solved it by setting all slide layers To “reset to initial state” .  I also do a run through of all slides and layers at the completion of a project to make sure they are all set this way.  I’ll only change this setting for a specific layer if the functionality I’ve created Requires it  (I rarely have to do this). I also delete any unused variables and unused master and feedback templates....these last two may not have anything to do with suspend data but are just good housekeeping to keep file size and complexity down to minimums. Hope you get breakthrough soon. Best wishes.