Koneywell

I've been having a very strange problem. After I downloaded and installed the mod, I went in to see the parts, but only some of the parts would show up. Several parts, such as the command capsules and decouplers, would not show up, while others, like the engines, fuel tanks, and wings, did appear. I have installed and reinstalled it manually and I am using KSP version 1.2.2.1622 64 bit for Windows. If anyone could help me out, that would be greatly appreciated. Also, I looked at the mod file within the GameData folder and all the necessary items for the missing parts appear to be present, though I'm not sure at this point.