The code that attemtps´to display all common names in capital case is still inconsistently working when the first letter of a name is a non ‘standard’ English 26 letter. If the first letter is one of these, there remain cases where the 2nd letter gets capitalized
Running in Danish, it used to be broken, but seems to be working now. See middle box in lower row here
However, running Polish names, it does not work, as seen here
Please note neither of these is an accented character, both Æ in Danish, and the Polish character (which I dont have on my Danish keyboard) are full letters, not accented versions of othrer letters.