FireFox Invisible Images/Media related to Animation

I have a course that I've exported to SCORM.  When viewing the course in FireFox, the images start out invisible. There appears to be a clickable placeholder for the image. When I click the image to zoom, it appears. When I click to "un-zoom" it disappears again.

I've narrowed this down to a problem with div on the outside of the image that appears to control the animation. After the animation finishes, the opacity is set to 0, causing the image to disappear. 

Here's a screen shot showing the opacity set to 0. If I can provide additional help in reproducing, please let me know what would be beneficial.

A bug with images and FireFox

 

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