Which device are you on? Have you tried using a different device/browser to check if that resolves the issue? Keep us posted.
Hey @TeamYouTube the system is refusing to swap out thumbnails on this video. I upload, save and nothing happens.https://youtu.be/2mwdwaGBdNA
-
-
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.