Cannot use natural sign in chord symbols

I was trying to enter some chords with tensions, e.g., E♭7(♭9♮13), but it doesn't seem working with natural signs. The one you can add by using "Insert a special character" appears to be subscript, and after entering the chord, you get a blank rectangle instead of a natural sign. Ctrl-Shift-H mentioned in https://musescore.org/en/handbook/4/chord-symbols#enter-chord-symbol doesn't work either, it just doesn't add any symbol.

Any help / workaround?

OS: macOS 14.6, Arch.: x86_64, MuseScore Studio version (64-bit): 4.4.2-242570931, revision: 3130f97