Just to confirm, are you seeing any specific error message while uploading the video. Also, try this troubleshooter that covers some of the common uploading errors and how you can fix them: https://goo.gl/Q9UCB8 . Let us know if this helps.
Understood, just to confirm, have you tried uninstalling and reinstalling the app to see if that makes a difference? Let us know.
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Hmm, seems like an OS issue. Try using a different device to upload the video and see if that helps. Keep us posted.
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