Camera Uploads were automatically moving my .mov video files. I was on vacation and clearing them out after everything backed up every few days. Then I realized Dropbox had not loaded four days of videos, which I'd already deleted from my iPhone. I am heartbroken about the videos lost. I don't know why Dropbox randomly stopped loading my videos, but more importantly is there any possibility at all that somewhere, somehow they might be recoverable? I can't find any solution with iCloud, iTunes or iPhone.