I am also getting this error.. Cant switch between vessels or exit to space center/exit the game.. Pretty discouraging, have a youtube series based on this save/install with a heap of mods and would really like to solve this issue. This is the error I get in the output log whenever I try to switch/leave a craft: [Exception]: InvalidOperationException: Operation is not valid due to the current state of the object [FLIGHT GLOBALS]: Switching To Vessel Comm Sat 3 ---------------------- (Filename: C:/BuildAgent/work/d63dfc6385190b60/artifacts/StandalonePlayerGenerated/UnityEngineDebug.cpp Line: 49) InvalidOperationException: Operation is not valid due to the current state of the object at System.Linq.Enumerable.Single[urlConfig] (IEnumerable`1 source, System.Func`2 predicate, Fallback fallback) [0x00000] in <filename unknown>:0 at System.Linq.Enumerable.Single[urlConfig] (IEnumerable`1 source, System.Func`2 predicate) [0x00000] in <filename unknown>:0 at TweakScale.TweakScale.get_PartNode () [0x00000] in <filename unknown>:0 at TweakScale.TweakScale.get_moduleNode () [0x00000] in <filename unknown>:0 at TweakScale.TweakScale.Setup () [0x00000] in <filename unknown>:0 at TweakScale.TweakScale.GetModuleCost () [0x00000] in <filename unknown>:0 at Part.GetModuleCosts () [0x00000] in <filename unknown>:0 at ProtoPartSnapshot..ctor (.Part PartRef, .ProtoVessel protoVessel) [0x00000] in <filename unknown>:0 at ProtoVessel..ctor (.Vessel VesselRef) [0x00000] in <filename unknown>:0 at Vessel.BackupVessel () [0x00000] in <filename unknown>:0 at FlightState..ctor () [0x00000] in <filename unknown>:0 at Game.Updated () [0x00000] in <filename unknown>:0 at FlightGlobals.setActiveVessel (.Vessel v, Boolean force) [0x00000] in <filename unknown>:0 at FlightGlobals.SetActiveVessel (.Vessel v) [0x00000] in <filename unknown>:0 at VesselSwitching.OnGUI () [0x00000] in <filename unknown>:0 (Filename: Line: -1) Any help would be greatly appreciated. Thanks
