opt-shift-k gives me the expected Apple logo character in Notes and TextEdit, but in Mail I just get a square box. Same in a Flashcard Hero app I have. It used to work everywhere, but now, at least in Sonoma 14.3.1, it doesn't work some places.  (seems to work here)  I also have a keyboard text replacement set on my computer where I can type "apple logo" without the space in between and it puts in the character. That's not working in the same places opt-shift-k isn't working, so I guess the problem is in the Mail app and the Flashcard app. Is anyone else finding this problem? Any ideas? I don't find any threads here on it, or on the web. Perhaps it's a new thing.

With spaces allowed in Mac folder names, it's necessary to use an escape sequence while programming (at least what I'm doing in C right now) and Xcode is complaining about the standard usage of the backslash character, as in: input = fopen("/Users/joe\ schmoe/namedata.txt", "r"); if one of the folders were named "joe schmoe" with the space in there. Everything works, but the yellow warning tag and highlighting is bothersome. How do I turn off that incorrect warning?