Hello xMMRx Fry, Has every player in your Fireteam installed the patch today? Error Code Sheep may occur when players attempt to join a Fireteam without first updating their Destiny application to the newest version. Even if you are updated to the latest version of Destiny, other members of your Fireteam may not be. If your console fails to update your Destiny application automatically, you may need to initiate the update manually. You can learn how to accomplish this in our help article [url=https://www.bungie.net/en/Help/Article/12630]HOW TO MANUALLY UPDATE DESTINY[/url]. https://www.bungie.net/en/Help/Article/12630