If the Epic Games Launcher Setup Wizard ended prematurely in Windows 11/10, you can follow the solutions mentioned in this post to resolve the issue.

Fix #2: Check the Epic Games server status. Some sign in issues with Epic Games launcher is due to issues with the servers.

If the problem persists, submitting a detailed bug report to Epic Games is the best way forward. Keeping an eye on Fortnite’s official updates during major patches can also help, as these errors ...