Take a look at these tips for videos stuck during upload: https://goo.gl/l30Bvm . Let us know if it helps!
@TeamYouTube @YouTube been stuck on 26% for hour an a half is this a server issue?pic.twitter.com/kA1bBgLpiw
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.