KSP: 0.25.0642 Windows 32bit Problem: Rocket has clipped fuel tank which explodes on launch; atttempting to remove offending part in VAB causes the part to 'stick' to the mouse, and the VAB editor to no longer respond correctly to mouse clicks or keyboard input. Mods Installed: Better Than Starting Manned 1.647 Deadly Reentry 6.2 Final Frontier 0.5.6b PreciseNode 1.1.1 ModuleManager 2.5.0 Reproduction Steps: Load the linked craft file. Attempt to launch. Observe explosions (one TL-800 tank on the third stage). Revert to vehicle assembly, attempt to grab clipped/duplicated part. Watch editor go weird. Log: output log, craft file I'm thinking this is probably something that somehow got connected weirdly when I was making the rocket; duplicated something where I shouldn't have, or something. I'm hoping that I can fix this with a relatively simple modification to the .craft and not have to rebuild it from scratch? But I've not gone delving into the .craft files before, and any attempt to open it IN the editor causes...weirdness. Picking up the offending fuel tank causes it to move, but not the engine/RCS thruster/fuel line that are nominally attached to it, and then I can't set it back down. Once the entire KSP program crashed. EDIT: Rebuilt part file from scratch; no dupe errors this time.