Thanks for reaching out. We've seen similar reports and are currently looking into it.
@YouTube @TeamYouTube why can’t I upload channel art or pfp on mobile anymore?? “Feature is currently unavailable?”pic.twitter.com/2AbQ7FZP4s
-
-
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.