If you upgraded your Xbox One to an Xbox Series X, you may be having issues launching Assassin’s Creed Odyssey. Unfortunately, the game may believe you are missing add-ons; that is, you don’t have a required add-on installed (even though you do). It’ll direct you to the store to download the add-on, but the store will tell you it’s downloaded already. Just like that, you’re back to square one.
For me, it said I was missing “The Fate of Atlantis: Fields of Elysium.” For you, it may be different.
How do you fix this unfortunate bug? How do you force Odyssey to recognize this add-on so you can load up your save and get back to playing? The solution is fairly simple, but might require a little bit of time.
First, you’ll need to uninstall the add-on in question from your system using the game management menu. Go to your games, press the menu button, then enter the game management settings. From there, uncheck the add-on and then save the changes. This will uninstall the add-on.
After that, you’ll repeat the process in reverse in order to reinstall it. The add-on will now be unchecked. Check it, save the changes, and it’ll go into your download queue. After the download is complete, Assassin’s Creed Odyssey should recognize the add-on when you start it again.
This is indeed frustrating, but hey — has a next-gen console launch ever happened without a few hiccups?