Two exceptions are generated from the engines (one each) during startup

[smjjames]

They appear to be harmless as far as I can tell though.

PartLoader: Compiling Part 'UmbraSpaceIndustries/Orion/Parts/Orion/USI_ORION'

(Filename: C:/buildslave/unity/build/artifacts/StandalonePlayerGenerated/UnityEngineDebug.cpp Line: 56)

NullReferenceException: Object reference not set to an instance of an object
at USITools.USI_PulseDrive.OnAwake () [0x00000] in :0

at PartModule.Awake () [0x00000] in :0
UnityEngine.GameObject:Internal_AddComponentWithType(Type)
UnityEngine.GameObject:AddComponent(Type)
Part:AddModule(String)
Part:AddModule(ConfigNode)
PartLoader:ParsePart(UrlConfig, ConfigNode)
:MoveNext()

PartLoader: Compiling Part 'UmbraSpaceIndustries/Orion/Parts/Medusa/USI_MEDUSA'

(Filename: C:/buildslave/unity/build/artifacts/StandalonePlayerGenerated/UnityEngineDebug.cpp Line: 56)

NullReferenceException: Object reference not set to an instance of an object
at USITools.USI_PulseDrive.OnAwake () [0x00000] in :0

at PartModule.Awake () [0x00000] in :0
UnityEngine.GameObject:Internal_AddComponentWithType(Type)
UnityEngine.GameObject:AddComponent(Type)
Part:AddModule(String)
Part:AddModule(ConfigNode)
PartLoader:ParsePart(UrlConfig, ConfigNode)
:MoveNext()

[khr15714n]

still there is there in 0.1.0.2

[smjjames]

Still present in the current version as of 1/19

[smjjames]

Still around in KSP 1.1

[KSAMissionCtrl]

and in KSP v1.1.2 (just saying since I bothered to come all this way to report it anyways :P)