video stops playing sometimes and other times it doesn't

Thanks for your help. I looked to see if any of the things you listed were a cause and they weren't. It was me.

The video runs 3:10 minutes.  When I view it in preview mode it ends at 2:47 or so.  So I made the time line 2:50 to cover the playing time.  I went back into the program and changed the running time to 3:15 and set the trigger to change slides when the media ends.  That seems to have solved the problem.

I had a similar problem with an animation.  I had three objects that I wanted to fly in.  I set the timing for each one, but couldn't get them to work right.  I grouped the objects and then set the time for the group.  I saved everything and published.  The objects still appeared unattached, the group timing didn't work.  I went back and ungrouped the objects, deleted the animations, regrouped them, and then added an animation to the group.  It worked perfectly.

Tks