I'm trying to build parts to start making a Mun base and I can't connect ANY docking ports using the sub assembly option to test them out. It seems I'm having a lot of trouble in VAB with certain parts not connecting. I always have to scratch a project and move on to the next because of this. It's getting really annoying and I'm starting to think I wasted $40 on this game. I have Interstellar Lite, IXS core, Module Manager, Enhanced enviromental, KW rocketry, Aerospace, Firespitter, KASA, Near Future Propulsion, Texture Replacer and Community Resource Pack. Any help?