See basic value of an inherited class when debugging (std::basic_string)

I have a class that inherits from std::basic_string. I am using LLDB for debugging on MacOS. When paused in the debugger I can see values of std::basic_string<char> (and by extension std::string) without problems. However, my inheriting class does not have a visible or comprehensible value. Is there a flag I need to enable? Some setting?
Notably, this works in Visual Studio on Windows, so it's definitely doable in some way.