KSP: 0.24.2 Problem: At Launchpad/Runway FPS drops from 40 to 4. Tested with a Command Pod Mk1, 1.25m heatshield, MK16 Parachute, FL-T200 fuel tank and a LV-T45 engine. Mods Installed: Karbonite 0.3.5 MKS 0.19.3 CustomBiomes - 1.6.6 B9 R 5.2.1 Deadly Re-Entry v5.2 FAR 0.14.1.1a CustomAsteroids - 1.0.0 Active Texture Management Aggressive - Release Better Atmospheres V5 RemoteTech2 2-1.4.1 Engineer Redux 0.6.2.10 Enhanced NAvBall 1.3.2 KAS 0.4.8 Science Library 1.2 Blizzie's Toolbar 1.7.6 TAC Life Support 0.10.0.12 Kerbal Alarm Clock 2.7.8.2 Kerbal Joint Reinforcement 2.4.3.0 Fine Print 0.58b SCANsat b5 Universal Storage 0.8.4.22 Universal Storage TAC 0.8.3.4 Universal Storage KAS 0.8.3.12 KW Rocketry 2.6b Kerbal Construction Time 1.0.2 KSP Interstellar 0.11 Troubleshooting done Removed and reinstalled all mods, one by one until the error was encountered. Cleaned up the KSP install and freshened it up. Suggested Diagnosis It seems to me like this might be caused by the multiple versions of ORS(Open Resource System) used in both MKS and KSP Interstellar, and its interaction with Karbonites CRP(Community Resource Pack) which are all 3 working with adding and identifying resources that are not stock to the game. Since it only tanks when at a launchpad or runway I suspect there to be an issue with calling up a certain resource. Other mods installed that work with resources are TAC Life Support, Universal Storage and FAR. Reproduction Steps: Run KSP Interstellar along with MKS/Karbonite, try to launch a rocket or space plane. Logs: https://www.dropbox.com/s/32q67sshljyey94/output_log.rar?dl=0 http://imgur.com/CQfWbpX