I can’t play some videos once uploaded

I recorded video on my Windows phone and uploaded it to SkyDrive. I then deleted the original videos to make more room on my phone. When I went to view the videos in SkyDrive they were green. The screen is green and the audio is playing. I don't know if it doesn't support the file or something but I need those videos. I have tried playing them on other players and they were still green. I ONCE, just once got 1 of the files to play on my Skydrive folder on my phone but now even that is green.  Also some other videos played just fine for weeks and now also are green. What is going on and how do I fix it. It is an MP4 file. I don't know If that matters. The phone is windows and the app is SkyDrive so any video I shot I thought would be compatible.