@Google @TeamYouTube The hell is this? I CAN'T CHANGE MY OWN CHANNEL ART ON YOUTUBE BECAUSE YOU CHANGED HOW IT WORKS AND DIDN'T TELL ME!pic.twitter.com/nT4zJR5fRD
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Seeing if cleaning out the browser cache and cookies fixes it.
Okay, cleaning out the cache and cookies still won't let me get past this Sign In window that wasn't there when I changed the channel art last time. =/
That's odd, can you file a feedback report with these steps: https://goo.gl/WdI0BK ? It'll help us look into it.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.