Doesn't the fix include an updated win32calc file? Or does the fix update other files to make the conversion function not crash?
It installs a new version of win32calc.exe.mui file. The win32calc binary itself is unchanged. It seems the bug has something to do with localization
win32calc.exe.mui in KB4516077 and KB4524148 are binary identical. (note: difference between KB4516077 and KB4524148 is only in files windowsdefenderapplicationguard.wim (revision 774 vs 775) and jscript.dll (revision 772 vs 775))
An interesting question. In my case the same version still work everywhere, even in the latest version. Only what I can recommend, use it as portable, but not installed, as usually, into System32 or/and SysWOW64 folder. Spoiler: my wincalc7