.mp4 files won't play in 2015.1 release of Lightroom. Specifically these videos were shot with my daughter's iphone 6+ and then sent to my iphone 6+ using the WhatsApp app. They play fine on my Mac and the thumbnails show up in Lightroom grid view, but when I double-click to open and play in Lightroom I get a black error screen 'Video System Error:Unknown message:nextFrame'. Previously I have not had this problem with WhatsApp video.
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