We are having this same issue. we are looking at a file that stops bookmarking in the middle of course. I have also looked at another file recently that exhibited the same behavior.
I did see that this new file had many unused variables that would end up in the suspend data string in the SCORM session save. I stripped these unused variables out, and am going to republish this to SCORMCloud to see if this makes any change.
We are publishing to SCORM 1.2, but I would prefer that we publish to 2004. But, this is out of my hands. I might suggest that to my bosses though.
