Hey @TeamYouTube Why do I get this error message when I try to upload a custom thumbnail?pic.twitter.com/q4BSMIOA2Q
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
Thanks for letting us know. In the meanwhile, could you let us know if the issue also persists when you're using Incognito mode or a different browser? That'll help us.
Just tried it using Incognito mode. Same error
Thanks for trying. Please send a feedback report directly from YouTube with these steps: https://goo.gl/WdI0BK . While every individual report may not get a direct response, we do review everything and use the details to investigate and fix issues.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.