I'm still using the old font file from 3.2 but I assumed it was the same.
Bearing that in mind, my friends list displays Chinese names as "?" instead
of using the Chinese characters. It seems obvious that 3.3.5 introduced a
new size font for names listed in the friends list so perhaps it's missing
a suitable chinese sized font?

Is this error found with others or just me?

A new font was added in font.rar to fix this when 3.3.5 was released on Taiwan. Just redownload it.