I`m logged in on the xbox and nintendo fortnite epic games account, but I cannot change the...

this is because fortnite is an epic game and therefore uses your epic account linked to the microsoft account, you need to log into epic and change the name there which is free to do.

it wont change in fortnite as that game uses the tag setup on the epic account, you can freely log into epic and change that tag every 2 weeks.

You can check the steps here:

https://epicgames.helpshift.com/a/fortnite/?s=epic-accounts&f=how-do-i-disconnect-my-psn-id-nintendo...

Hi there Jojo, my name is Gerardo and I'm an Xbox player. I'll be happy to help.

Please note that Fortnite packs or items redeemed/purchased through the Microsoft website are for the Xbox console version of the game, not for Nintendo Switch. In this case, in order for the package to appear in Fortnite on your Nintendo Switch, you need to log in with your account on an Xbox console and open the game. This way, the content of the package will synchronize with your game on other platforms, including Nintendo Switch (provided that your Xbox and Epic Games accounts are linked). Please be aware that this policy is directly imposed by Fortnite and not by Xbox; it is a decision made by the Fortnite team.

I appreciate you understanding and if you have further questions please let me know.

Kind regards,
Gerardo.

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