How do I troubleshoot for one slide with a progress bar ithat does not fill ?

My file has 30 slides and over 20 of them have a video.  This particular slide has the same player settings as the others but it will not fill as the video plays.  The slide does auto advance though and it displays the buttons I selected.  I did select the default parameter settings and then reselected my personalized settings.  The personalized settings work as expected on all the other slides.  Checked it in Firefox, Chrome and IE.  There is a screen grab attached.  Any ideas?

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