can't play or install Halo Infinite Multiplayer Beta when another console user with Game...

OK... this is strange I think.

We have multiple user accounts on the Xbox Series X.

One user has Game Pass Ultimate.
That user's Home Xbox is not assigned to this Xbox, but it is on another. We don't want to change that.

That user has installed and played Halo Infinite Multiplayer on the console already.

When any other user tries to play, they get a message that the user must be signed in in order to play the Halo Infinite MP Beta (0x803f9006).
If a user then goes to the MS/XBOX store to download or install, the other users cannot download or install it (some odd error we didn't write down).

If this is a free to play game, why is this happening?

We cannot change the Home Xbox assignment to this one as that would break the functionality of the other Xbox.

We cannot give the other users the Ultimate user's passcode to sign in the GP Ultimate user's account as it is a parent account and that would be bad.

Signing the GP Ultimate user in is not an option most of the time.

How can other users play on this Xbox if they cannot download or install it at this point?

Any help is greatly appreciated.

Thanks in advance.

cheers

:)