Engage interactions missing

I recently posted 5 training courses onto Articulate Online, and all have 2 to 3 engage interactions embedded in them.  Originally, the entire set of records was on an external server, and I was having trouble with one of the five modules, so I moved all of the presentations and interactions to my hard drive and published them from there.  Now, every time I try to re-publish to correct anything, the voiceovers disappear on my Engage interactions and it stops my presentations cold.  When I preview the presentations before publishing them, everything works, including the Engage interactions.  It has affected all five presentations at this point - how can I fix this?