I use ue4 4.8 branch git source code version. win64.
I get this crash every time i try to bake my lightmaps. It crashes when it wants to import the lightmaps.
Whats not normal. it shouldn’t happen.
Someone has an idea where i can look for the origin of this crash?
Unknown exception - code 00000001 (first/second chance not available)
"Assertion failed: false [File:D:\GitHub\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\Lightmass\Lightmass.cpp] [Line: 3897]
Uncompress failed, which is unexpected
"
KERNELBASE
UE4Editor_Core!FOutputDeviceWindowsError::Serialize() [d:\github\unrealengine\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor_Core!FOutputDevice::Logf__VA() [d:\github\unrealengine\engine\source\runtime\core\private\misc\outputdevice.cpp:144]
UE4Editor_Core!FDebug::AssertFailed() [d:\github\unrealengine\engine\source\runtime\core\private\misc\outputdevice.cpp:360]
UE4Editor_UnrealEd!FLightmassProcessor::ImportLightMapData2DData() [d:\github\unrealengine\engine\source\editor\unrealed\private\lightmass\lightmass.cpp:3901]
UE4Editor_UnrealEd!FLightmassProcessor::ImportTextureMapping() [d:\github\unrealengine\engine\source\editor\unrealed\private\lightmass\lightmass.cpp:4000]
UE4Editor_UnrealEd!FLightmassProcessor::ImportStaticLightingTextureMapping() [d:\github\unrealengine\engine\source\editor\unrealed\private\lightmass\lightmass.cpp:3467]
UE4Editor_UnrealEd!FLightmassProcessor::ImportMapping() [d:\github\unrealengine\engine\source\editor\unrealed\private\lightmass\lightmass.cpp:3612]
UE4Editor_UnrealEd!FLightmassProcessor::ImportMappings() [d:\github\unrealengine\engine\source\editor\unrealed\private\lightmass\lightmass.cpp:2930]
UE4Editor_UnrealEd!FLightmassProcessor::CompleteRun() [d:\github\unrealengine\engine\source\editor\unrealed\private\lightmass\lightmass.cpp:2874]
UE4Editor_UnrealEd!FStaticLightingSystem::FinishLightmassProcess() [d:\github\unrealengine\engine\source\editor\unrealed\private\staticlightingsystem\staticlightingsystem.cpp:1911]
UE4Editor_UnrealEd!FStaticLightingManager::ProcessLightingData() [d:\github\unrealengine\engine\source\editor\unrealed\private\staticlightingsystem\staticlightingsystem.cpp:121]
UE4Editor_UnrealEd!FStaticLightingSystem::UpdateLightingBuild() [d:\github\unrealengine\engine\source\editor\unrealed\private\staticlightingsystem\staticlightingsystem.cpp:2059]
UE4Editor_UnrealEd!UEditorEngine::UpdateBuildLighting() [d:\github\unrealengine\engine\source\editor\unrealed\private\staticlightingsystem\staticlightingsystem.cpp:2153]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [d:\github\unrealengine\engine\source\editor\unrealed\private\unrealedengine.cpp:403]
UE4Editor!FEngineLoop::Tick() [d:\github\unrealengine\engine\source\runtime\launch\private\launchengineloop.cpp:2355]
UE4Editor!GuardedMain() [d:\github\unrealengine\engine\source\runtime\launch\private\launch.cpp:142]
UE4Editor!GuardedMainWrapper() [d:\github\unrealengine\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\github\unrealengine\engine\source\runtime\launch\private\windows\launchwindows.cpp:249]