I have tried again many times with different methods but still no success.
I was just thinking about what you said earlier about "illegal ID characters", is it because my XBOX ID is in Chinese that causes this problem? Because I can't change my username on my account anymore.
@Greymagic27 But the problem isn't solved!
I have tried again four times
Still not working
I tested it with my account and still got the message in the picture, it didn't migrate properly
Some time ago I received a notice to migrate my account, but no matter what I did, I was unable to successfully migrate my account and still can't.
I have contacted support before and although they said it had been resolved, I am still unable to migrate.