We are currently working with Microsoft to resolve an issue preventing players from logging into the Xbox worlds. Any updates will be posted to this thread as we have them. Thank you for your patience. Update: We believe we have concretely identified the problem and are working on the fix. I still do not have an ETA beyond as soon as is humanly possible. Update: The login problem has been resolved. Thank you for your patience. You may need to restart the game or your console if you were receiving the error previously.