After trying for several hours of updating one of my videos from my youtube channel into dTube, I gave up. I received all the time IPFS error, I'm still wondering if the error was the video format (I was using MP4) or the file size (+50 MB). So I decided to try with this well-known video playback to test the upload function in dVideo and It worked. There must be a restriction in the service, still trying to figure it out.
► Watch on DTube
► Watch Source (IPFS)