THIS MOD IS DEPRECIATED AND THE KSP ISSUE IT TARGETED WAS FIXED IN KSP 1.12.3 Just update KSP to the latest version. Moreover, this mod conflicts with other mods using KSPHarmony, installing it will cause issues.       OP for reference : This is a fix for the KSP 1.12.2 bug that cause the game to be stuck on Loading Part Upgrades on a modded install. This bug happens when you have a duplicated *.dll file in you GameData folder/subfolders. In KSP 1.12, the code