Just updated, now .mov or other video won't play in Keynote

As I put together my slideshow for church last night, I realized none of my .mov, mp4, mpg videos would work properly. They were playing, but just a black screen. A needed advent video would play audio just fine, but no video. From simple animated backgrounds to regular video... nothing would work. Any ideas on how how get this functioning again? I worked around with a command-tab to Quicktime and back to Keynote... but I would love to have vi

I think I should say that this was after using the "Duplicate" from the previous week. Slides with backgrounds still played from previous week before the update...

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