I have the same problem, with the same solution (making a new game) but I would hate to start over after all my work. I am running all these mods on the 32 bit version, not the 64 bit, but am having the exact same problems as described above. I don't know what to do I have this boatload of mods. 000_toolbar (not technically compatible with .90) Active Texture Management (so that I can manage to run all of these on a 32 bit system) B9 Aerospace Kerbal EVA Resourse Transfer Community Resource Pack Cross Feed Enabler (not technically compatible with .90) FAR KAS KW Rocketry Infernal Robotics MechJeb 2 Mission Controller EC Near Future Electrical Near Future Propulsion Near Future Solar Open Resource System Procedural Fairings RealChute SmokeScreen Stage Recovery Tech Manager KAC Interstellar Module Manager (included with the other mods) I hope somebody can help me out.