What do I do if I get stuck on "Redeeming Offline Purchases" when starting Fortnite on Xbox Series X|S?

If you receive this error, power cycling your Xbox Series X|S console may resolve it:

1. Turn off your Xbox Series X|S console.
2. Unplug the power cable from the console.
3. Wait 10 seconds.
4. Plug the power cable back into the console.
5. Turn on your Xbox Series X|S console.
6. Start Fortnite.