[CrashReport] Crash on Mac during cook - UEditorEngine::UpdateAutoLoadProject()

UE - Platform - Apple - Jun 6, 2017

This is a top crash on Mac. This crash has only occurred on the 4.16.1 release (there are no records of it in 4.16.0). Repro steps are currently unknown, but the crash occurs in Commandlet mode and ...

[CrashReport] UE4Editor_CoreUObject!FScriptArrayHelper::EmptyAndAddUninitializedValues() [unrealtype.h:2703]

UE - Gameplay - Blueprint Compiler - Aug 15, 2017

This is a trending crash coming out of the 4.17.0 release. Based on user descriptions, this crash occurs on Play or Compile for affected users. User DescriptionsAgain crashing when I hit playIF I C ...

Crash assigning static mesh to LightWeightInstanceStaticMeshManager

UE - Gameplay - May 21, 2021

Crash occurs when the user assigns a static to the Instanced Static Mesh Component in a LightWeightInstanceStaticMeshManager. I couldn't reproduce this with an actor blueprint with an ISMC or HISMC ...

[CrashReport] UE4Editor_CoreUObject!UObjectPropertyBase::Identical() [propertybaseobject.cpp:60]

UE - Foundation - Cpp Tools - Hot Reload - Nov 17, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Access violation - code c0000005 (first/second chance not available) Source C ...

iOS fails during build step with OSS Facebook plugin enabled due to spaces in filepath

UE - Platform - Mobile - Feb 8, 2019

When a user tries to package or launch onto an iOS device they will fail at the build step due to:[3/8] sh Unzipping: /Users/Shared/Epic Games/UE_4.22/Engine/Source/ThirdParty/Facebook/IOS/FacebookS ...

[CrashReport] UE4Editor_PropertyEditor!FDetailCategoryImpl::GetParentLayoutImpl() [detailcategorybuilderimpl.h:168]

Tools - Aug 22, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: IsValid() [Link ...

[CrashReport] Crash in TerminateOnDeviceRemoved() - DXGI_ERROR_DEVICE_HUNG

UE - Graphics Features - Aug 29, 2016

Error message: Fatal error: [Link Removed] [Line: 176] Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - 'HUNG') Source Context: 161 162 const TCHAR* Reas ...

Gauntlet test warnings in QAGame Win64 Development BootTest

UE - Rendering Architecture - RHI - Sep 6, 2023

QAGame Win64 Development BootTest: * Ensure: Ensure condition failed: oldValue == newValue [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\HAL\ThreadingBase.cpp] [Line: 311] oldVal ...

Prevent unnecessary rebuilds of windows resource files

UE - Foundation - Cpp Tools - UnrealBuildTool - Sep 20, 2023

How Necessary are BUILT_FROM_CHANGELIST and BUILD_VERSION in Resource Files? We've been investigating ways to improve the speed of our iterative engine builds, and have found that the vast, vast maj ...

[CrashReport] UE4Editor_Engine!FTextureCacheDerivedDataWorker::BuildTexture() [texturederiveddata.cpp:772]

UE - Graphics Features - Feb 20, 2017

Error message: Access violation - code c0000005 (first/second chance not available) Source Context:757 if (SourceMips.Num()) 758 { 759 FFormatNamedArguments Args; ...