To anyone that is having problems with parts not showing up in the catalog: There is an error in some of the part.cfg files that I have noticed. Sometimes, there will be a space between 'part' and the file extension '.cfg' (e.g, 'part .cfg'). Simply rename the file, removing the space, and the part will now show up. Example: The Mk82 bomb is not showing up in the editor. Navigate to the Mk82 bomb directory (mine is: 'E:\Program Files (x86)\Steam\SteamApps\common\Kerbal Space Program\GameData\BDArmory\Parts\mk82Bomb'). Inside will be three files: model.mu, texture.png, and 'part .cfg'. Remove the space after part so it becomes this: 'part.cfg' Done!