Gamer tag changed when I signed in

you got a forced name change cause your old name was against the rules you have 2 options keep old tag or pay to change it but you MUST keep it rated E for everyone. too many forced name changes results in a perm ban of the Live service. remember you cannot
use profanity on names or words that sound like profanity which is what your old tag did.

I did signed into Mixer with that Gamer Tag: . I changed my Gamer Tag recently maybe it changed there. My new Gamer Tag is Crusader Colin. Try that one.

I signed up using a different gamer tag, if that helps any- i signed up under "Panglossia" then changed my gamer tag.

No issues with the game so far,but I just now noticed that I have two sign in names? When Im at the start menu my normal gamer tag is on the screen but when i hit (A) my gamer tag changes ti this long gamer tag. Has anyone or is anyone experiencing this
same issue?

You might want to check the sign in email address that you used when you were online and changed your gamer tag.

Go back online and sign in and see if the gamer tag is showing up when you're online on the Xbox website.

If it's showing up there correctly, then you'll want to go back to the Xbox Console and Add that account to your Xbox using that sign in email address.

If your gamer tag is not showing up online and you were charged for the gamer tag change and it didn't take you can contact Xbox Support for a refund "maybe".

The other possibility is that you're signed in on the Xbox console with one account and you signed in online with a different account. If that's the case then you may have changed the GT on the wrong account.