Hello, I have an issue that seems to be similar to those described here and here, however I have NOT used any of the mods described (or similar mods) there or performed any manual edits this my savegame. This savegame was upgraded from 0.9 as I have not played for over 6 months. Environment: KSP: 1.0.4 (Win32) - Unity: 4.6.4f1 - OS: Windows 8.1 (6.3.10240) 64bit Kerbal Engineer Redux - 1.0.18 KSP-AVC Plugin - 1.1.5 PlanetShine - 0.2.3.1 StageRecovery - 1.5.7 Waypoint Manager - 2.3.4 The issue is that I have one space station in orbit around kerbin which is manned and I am not able to interact with it any more. I cannot select it in the tracking station and all actions (like go to and terminate) are disabled. When selecting the station the following appears in the debug log: [PlanetariumCamera]: Focus: Manned Station 1(Filename: C:/buildslave/unity/build/artifacts/StandalonePlayerGenerated/UnityEngineDebug.cpp Line: 56) ArgumentOutOfRangeException: Argument is out of range. Parameter name: index at System.Collections.Generic.List`1[InternalSeat].get_Item (Int32 index) [0x00000] in <filename unknown>:0 at KnowledgeBase.CreateVesselCrewList (.Vessel v) [0x00000] in <filename unknown>:0 at KnowledgeBase.OnMapFocusChange (.MapObject target) [0x00000] in <filename unknown>:0 at EventData`1[MapObject].Fire (.MapObject data) [0x00000] in <filename unknown>:0 at PlanetariumCamera.SetTarget (.MapObject tgt) [0x00000] in <filename unknown>:0 at SpaceTracking.SetVessel (.Vessel v, Boolean keepFocus) [0x00000] in <filename unknown>:0 at SpaceTracking+ .MoveNext () [0x00000] in <filename unknown>:0 Filename: Line: -1) NullReferenceException: Object reference not set to an instance of an object at KnowledgeBase.UpdateVesselInfoList (.Vessel v) [0x00000] in <filename unknown>:0 at KnowledgeBase.FixedUpdate () [0x00000] in <filename unknown>:0 (Filename: Line: -1) After this the NullReferenceException begins to loop infinitely. I have temporarily disabled all mods but it does not make any difference. Logs and Savegame: http://1drv.ms/1Lx0wxD Thanks for any help in advance!