I always use Premier Pro to produce my videos and I export them straight to my Dropbox. Then, from the app, I download them to my phone. One of the videos, which I've now saved and exported several through several attempts, will still not download from the Dropbox app because of the "type" (whatever that means) of video it is. BUT it is the same "type" of video as all of the other ones! What am I doing wrong?