For long since I joined in the game, I noticed some letters(characters) in multiple language cannot be displayed.
(Pic, the same page playing in English and in Chinese ↓)
Notice that some texts, which appears "empty" in English in fact are Chinese(or Kanji if you'd like to say). Also, one of the space is supposed to be Thai (Pic ↓), but missed.
In another word, that is able to prove why some of ur game friend's, or even team's name is empty (since the original font doesn't fit there).
So, although I am Chinese and play in Chinese, I still have to change my name to "Fish" to be obviously seen.