From .log file:
[LOG 15:56:58.009] PartLoader: Compiling Part 'Galaxy/C5CargoBay/C5CargoBay/GC5CargoBay'
[EXC 15:56:58.013] NullReferenceException: Object reference not set to an instance of an object
PartLoader.SetFogFactor (UnityEngine.GameObject model, Single fogFactor)
PartLoader.ParsePart (.UrlConfig urlConfig, .ConfigNode node)
PartLoader+.MoveNext ()
From KSP_Data:
PartLoader: Compiling Part 'Galaxy/C5CargoBay/C5CargoBay/GC5CargoBay'
(Filename: C:/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 64)
NullReferenceException: Object reference not set to an instance of an object
at PartLoader.SetFogFactor (UnityEngine.GameObject model, Single fogFactor) [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
There were no Blender errors.