Why am I getting the "Choose Which Display Name to Use" message when logging in?
If your account was previously Cabined, you were given a new Epic generated display name that replaced your previous display name. However, when your account is no longer Cabined, your old display name is reserved and you can revert back to it if you want.
If you would like more information on Cabined Accounts, please see our Epic Games Cabined Accounts FAQ here (Opens in a new tab).