I am Einstein!
I figured it all out on these upload errors on Dtube! I had uploaded an old video back a couple weeks ago without issue via laptop using chrome. Then last week I tried to upload via laptop again, but I got an error!
So I tried the Galaxy Edge plus 6 for to see I would get the same issue using Chrome; again I get that stupid error! I double checked if it was coding issues such as mp4 files but it gladly accepts those. It is a great time to be ME!
NOW LISTEN UP! PAY ATTENTION! Also meditate because i know the ones who affected by this Stupid a$$ inconvenience wants to murder someone close but don't, please. I'm here for you.
Install Firefox on your Intelligent phone or your computer and it should work fine.
I can only make a guess which is Chrome might not be as lubricated as That Good Foxy. If this didn't resolve it then switch to a different browser than those 2. Don't go for Safari though. You will get lost in the wild and get killed or go mad!