Can't Change My Name

Hello.

My name is LightBender, but now I want to change my name to "𝔏𝔦𝔤𝔥𝔱𝔅𝔢𝔫𝔡𝔢𝔯" or "🅻🅸🅶🅷🆃🅱🅴🅽🅳🅴🆁". However, the site won't let me. It only lets me change my name to a name without special characters, such as "y = mx + b". A few months before, the site would let me.

Can anybody please help?

P.S: Here are some screenshots of what happens.

• My home page . . .

•  Editing . . .

• It doesn't change!

P.S.S: I don't like my current name, I want to change it!