I am having problems installing the mod to Kerbal Space Program 1.11.2. I try to put it into the GameData folder, use the Modulemanager 4.1.4, and when I start up the game, it shows the the files on the start up, but when i go to a game file I choose, I go to the Spaceplane hanger and the parts are not there on the part selection slots. I don't know what is problem and I need help.