How did the glory of the king Huyaxi's name become blank?

When changing the name, you can enter some constellation symbols. If the system doesn't recognize it, it will become a blank name. But it will probably be renamed.

The glory of the king blank name setting:

See an input box, this is what you want to enter your name.

Then, this is the point. You can see that I used six strange characters to combine together, and then click OK. By the way, post those codes. Can be combined freely, with a maximum of 6 characters.