preview update can not sign into twitch account on my xbox it tells me to go to ...

A me too post - Mahjong can sign in on WIndows 10 Pro Insider Preview Build 10074 on my desktop, but when I try to sign in on the WIndows 10 Home Insider Preview build 10074 on my Surface3, it fails. A white box tells me to go through the account settings
to set the account or uninstall and reinstall the game (I did that - same effect).

the problem is my twitch account (wrong birthday when sign up on pc)

and the app wont let me sign out/unlink or switch to a new account.... soy i close my twitch account and sign up a new one , after that it said cannot to twitch servers....

sorry for my bad english ^^;

Apparently they don't give a ***, they told me it's not there app so it's not there problem (not in those exact same words). That's a load of bs. I just watched a xbox engineer talking about some new things there going to be doing with the twitch app in
some up coming updates. Your still going to tell me xbox has nothing to do with the twitch app?

I’ve already tried to do that but I’m stuck in some kind of loop. When I get sent the SMS codes, it claims I’ve now linked my twitch and Xbox account but when I go onto twitch it just tells me to do the same thing again.

This is The McGuffin on the account that signed up for the preview program on the 360. Please grant me the appropriate permissions for the xbox 360 update preview forums. Thanks!