Why is Unreal Engine Crashing? im in the middle of a project

Development Rendering
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1

Unreal Engine 4.4 Crashing with message :
Assertion failed: GConfig->GetBool(TEXT(“DevOptions.StaticLighting”), TEXT(“bUseBilinearFilterLightmaps”), GUseBilinearLightmaps, GLightmassIni) [File:C:\UnrealEngine-4.4.0-release\Engine\Source\Editor\UnrealEd\Private\StaticLightingSystem\StaticLightingSystem.cpp] [Line: 418]

Stack:
FWindowsPlatformStackWalk::StackWalkAndDump() 0x531357e6 + 0 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\core\private\windows\windowsplatformstackwalk.cpp:177] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-Core.dll]
FDebug::AssertFailed() 0x52fd4525 + 0 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\core\private\misc\outputdevice.cpp:203] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-Core.dll]
FStaticLightingSystem::BeginLightmassProcess() 0x51c412b6 + 0 bytes [File=c:\unrealengine-4.4.0-release\engine\source\editor\unrealed\private\staticlightingsystem\staticlightingsystem.cpp:419] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-UnrealEd.dll]
FStaticLightingManager::CreateStaticLightingSystem() 0x51c47f50 + 0 bytes [File=c:\unrealengine-4.4.0-release\engine\source\editor\unrealed\private\staticlightingsystem\staticlightingsystem.cpp:210] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-UnrealEd.dll]
UEditorEngine::BuildLighting() 0x51c43b4e + 63 bytes [File=c:\unrealengine-4.4.0-release\engine\source\editor\unrealed\private\staticlightingsystem\staticlightingsystem.cpp:2114] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-UnrealEd.dll]
FEditorBuildUtils::EditorBuild() 0x51553dd8 + 0 bytes [File=c:\unrealengine-4.4.0-release\engine\source\editor\unrealed\private\editorbuildutils.cpp:330] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-UnrealEd.dll]
TBaseStaticDelegateInstance_NoParams::ExecuteIfSafe() 0x46c1a71a + 0 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\core\public\delegates\delegateinstancesimpl.inl:690] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-LevelEditor.dll]
FUICommandList::ExecuteAction() 0x525ecbb6 + 60 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\slate\private\framework\commands\uicommandlist.cpp:104] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-Slate.dll]
SToolBarButtonBlock::OnClicked() 0x5275056d + 0 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\slate\private\framework\multibox\stoolbarbuttonblock.cpp:293] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-Slate.dll]
TBaseSPMethodDelegateInstance_RetVal_NoParams::Execute() 0x5271471c + 17 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\core\public\delegates\delegateinstancesimpl.inl:161] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-Slate.dll]
TBaseDelegate_RetVal_NoParams::Execute() 0x52826f7a + 6 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:1058] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-Slate.dll]
SButton::OnMouseButtonUp() 0x52868f59 + 17 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:188] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-Slate.dll]
FSlateApplication::ProcessMouseButtonUpEvent() 0x52634cff + 20 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:3421] [in C:\Unreal Engine\Unreal Engine 4.4.0\Unreal Engine\Engine\Binaries\Win64\UE4Editor-Slate.dll]
FSlateApplication::OnMouseUp() 0x52622219 + 17 bytes [File=c:\unrealengine-4.4.0-release\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:3388] [in C:

2

Hi Marmor,

I am more than happy to help address this crash, however I will need a bit more information to understand what is going on. What actions were you taking before the crash occurred? Can you post a link to your logs (go to the filepath \Unreal Projects\PROJECT NAME\saved\logs) and your dxdiag? Do you have any specific steps I can take to reproduce this on my end?

3

Hi Marmor,

Which .ini file were these options located in?

4

Im pretty sure i know why this error occured but i can’t fix it, i was trying to change some settings to get “better” lightning, well, i was wrong. i cant remember what i had before but i know what i put in
[DevOptions.StaticLightingProductionQuality]
NumShadowRaysScale=32
NumPenumbraShadowRaysScale=64
ApproximateHighResTexelsPerMaxTransitionDistanceScale=9
MinDistanceFieldUpsampleFactor=7
NumHemisphereSamplesScale=64
NumImportanceSearchPhotonsScale=6
NumDirectPhotonsScale=32
DirectPhotonSearchDistanceScale=.5
NumIndirectPhotonPathsScale=32
NumIndirectPhotonsScale=64
NumIndirectIrradiancePhotonsScale=32
RecordRadiusScaleScale=.45
InterpolationMaxAngleScale=.75
IrradianceCacheSmoothFactor=.75
NumAdaptiveRefinementLevels=3
AdaptiveBrightnessThresholdScale=.25
AdaptiveFirstBouncePhotonConeAngleScale=2.5

i know now that i shouldn’t tinker with things i don’t understand -.-