if there has duplicate keys will lose data

[GiantappMan]

string filename = "C:\\Users\\username\\AppData\\Local\\TslGame\\Saved\\Config\\WindowsNoEditor\\GameUserSettings.ini";
var iniFile = new IniFile.IniFile(filename);           
iniFile.Save(filename);

#pubg game GameUserSettings.ini

[/Script/TslGame.TslGameUserSettings]
ScreenScale=100.000000
...
ErangelPreloadingMaps=Grid-Level_1-1
ErangelPreloadingMaps=Grid-Level_1-2
ErangelPreloadingMaps=Grid-Level_1-5
ErangelPreloadingMaps=Grid-Level_1-6
ErangelPreloadingMaps=Grid-Level_2-2
ErangelPreloadingMaps=Grid-Level_2-3
ErangelPreloadingMaps=Grid-Level_3-1
ErangelPreloadingMaps=Grid-Level_3-2
ErangelPreloadingMaps=Grid-Level_3-3
ErangelPreloadingMaps=Grid-Level_3-4
ErangelPreloadingMaps=Grid-Level_4-2
ErangelPreloadingMaps=Grid-Level_4-3
ErangelPreloadingMaps=Grid-Level_4-6
ErangelPreloadingMaps=Grid-Level_5-1
ErangelPreloadingMaps=Grid-Level_5-2
ErangelPreloadingMaps=Grid-Level_5-4
ErangelPreloadingMaps=Grid-Level_5-5
ErangelPreloadingMaps=Grid-Level_5-6
ErangelPreloadingMaps=Grid-Level_6-1
ErangelPreloadingMaps=Grid-Level_6-2
ErangelPreloadingMaps=Grid-Level_6-3
ErangelPreloadingMaps=Grid-Level_6-4
ErangelPreloadingMaps=Grid-Level_6-5
ErangelPreloadingMaps=Grid-Level_6-6