I'm having the same problem with it hanging while loading the KW parts. I checked my output_log.txt and near the end I think I found some errors: MissingFieldException: Field '.ModuleAnimateHeat.draperPoint' not found. at SolverEngines.ModuleAnimateEmissive.OnLoad (.ConfigNode node) [0x00000] in <filename unknown>:0 at PartModule.Load (.ConfigNode node) [0x00000] in <filename unknown>:0 at Part.AddModule (.ConfigNode node) [0x00000] in <filename unknown>:0 at PartLoader.ParsePart (.UrlConfig urlConfig, .ConfigNode node) [0x00000] in <filename unknown>:0 at PartLoader+.MoveNext () [0x00000] in <filename unknown>:0 (Filename: Line: -1) MissingFieldException: Field '.ModuleAnimateHeat.draperPoint' not found. at SolverEngines.ModuleAnimateEmissive.OnStart (StartState state) [0x00000] in <filename unknown>:0 at Part.ModulesOnStart () [0x00000] in <filename unknown>:0 at Part+.MoveNext () [0x00000] in <filename unknown>:0 (Filename: Line: -1) I don't know if this deals with the "ModuleAnimateEmissive" that comes with KW or not.