Fortnite settings from iPad to Xbox one

Have you tried to go to Epic Games website and contact support? That may be the way to find the answer. Or you can Google it.

Hi there, please refer to this link thanks Fortnite
Account

Kind Regards

Alec

Hi Vince,

Thank you for posting on the Xbox forums, I'd be happy to answer that.

The
Fortnite: Battle Royale - Breakpoint's Challenge Pack
purchased from the Microsoft Store is for Fortnite on the Xbox One only. You cannot use this purchased item on Fortnite for iOS. You would need to buy this pack from the App Store on your iPad. So, unfortunately we cannot assist you with this issue.

Hello, William P. I’m Arturo, and I’ll be glad to provide some guidance with your concern today.

However, I find appropriate to ask some questions:

-Is iPadOS up-to-date?
Review this by opening Settings > General > Software update.

-Are more Cloud Gaming games affected, or is Fortnite the one giving you some trouble?

-Did you try to play Fortnite on another device, like a mobile phone, or another iPad?

-What potential solutions you tried on your iPad to solve this problem?

I don't believe such a set of headphones exist, but you could get a pair that allow both wired and Bluetooth connections simultaneously and have one connected to the ipad for fortnite or any other game and the other to another device running the Xbox app.
I do not believe there is any way of achieve a mixer between the two on one device unless it is supported somewhere in your devices software settings.