Sound disappeared from my phone's video once uploaded to facebook
I took a video on my Sony Experia Z, and it originally had sound when I played it back. I'm sure, as I played it a couple times. I then uploaded the video to facebook. I noticed that the facebook video had no sound, so I went back to the original video to try re-uploading it, but now the original no longer has sound either! Neither does the video I took right before it. But all my other videos have sound. I tried downloading all my videos to my computer, but still have the same issue- all videos have sound except my most recent two videos.
Does anyone know how I can get the sound back on my original video? Any idea what caused the problem so I can avoid it in the future? Maybe the video's settings were somehow changed on my phone or on Mx player when it was uploaded. Thank you!