Big first letter of Post title doesn't recognize some characters

Possible bug found:

Single Post Title element has a Big first letter option. That option works fine, but it doesn’t seem to recognize characters with diacritics, for example Č, Š, Ć, Đ and so on.

So when the title begins with “Đ” for example, a question mark appears instead of Đ in Big first letter.

I’ve checked site charset etc, all looks fine. I guess the bug could be buried somewhere in TD Composer. For now I’ve patched it with JS but it’s far from ideal of course.

Please look it up when you find the time 🙂 thanks.