I took a 3:07 video on my Lumia 635 with the Lumia Camera app. At 1:09, the video freezes and stays in this state until the end of the video. There is no audio after the video freezes. It does this on the phone and the computer. Any idea why this happened? I took another video, and the same thing happens at 12 seconds. Why is this happening? The videos are set to go to the SD card. This is my first Windows Phone device, and I just got it on March 1st.