Korean is broken.

[jkh0kr]

 PlSharedFontType_Standard             = 0,  ///< Japan, US and Europe
 PlSharedFontType_ChineseSimplified    = 1,  ///< Chinese Simplified
 PlSharedFontType_ExtChineseSimplified = 2,  ///< Extended Chinese Simplified
 PlSharedFontType_ChineseTraditional   = 3,  ///< Chinese Traditional
 PlSharedFontType_KO                   = 4,  ///< Korean (Hangul)
 PlSharedFontType_NintendoExt          = 5,  ///< Nintendo Extended. This font only has the special Nintendo-specific characters, which aren't available with the other fonts.
 PlSharedFontType_Total,                     ///< Total fonts supported by this enum.

https://git.nicholemattera.com/NicholeMattera/Chocolate-Doom-Launcher/src/commit/436aeff7623a8982cbac4058b5b37d4b10c64ccd/Source/Managers/Font.cpp

Please see the code above and patch it.

And Please support Korean language. Added language files.

ko.txt