Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_PropertyEditor!FDetailCategoryImpl::GetParentLayoutImpl() [detailcategorybuilderimpl.h:168]
Tools - Aug 22, 2016This 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 ...
Gauntlet test warnings in QAGame Win64 Development BootTest
UE - Rendering Architecture - RHI - Sep 6, 2023QAGame 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, 2023How 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, 2017Error message: Access violation - code c0000005 (first/second chance not available) Source Context:757 if (SourceMips.Num()) 758 { 759 FFormatNamedArguments Args; ...
[Feature Request] Cook in the Editor should only save Asset Registry for the cook target platform
UE - Foundation - Core - Cooker - Jan 18, 2018Request from Licensee: When launch Launching in the editor, it seems that asset registries of platforms other than those specified in Launch are also generated. LogAssetRegistryGenerator: Startin ...
Hot reload causes placed actor to lose variable references
UE - Foundation - Cpp Tools - Hot Reload - Nov 9, 2017Preforming a hot reload causes placed actors to lose code based variable settings. More repro steps: 1. Open UE4Editor.exe 2. Create a First Person Code project 3. Build the project for Developme ...
Compilation errors with UE_NET_ENABLE_REPLICATIONREADER_LOG enabled
UE - Networking - Iris - Jul 15, 2024Enabling UE_NET_ENABLE_REPLICATIONREADER_LOG results in the following errors: {{4>[1/5] Compile [x64] ReplicationReader.cpp 4>D:\P4V\UE5-Main\Engine\Source\Runtime\Experimental\Iris\Core\Private\Ir ...
[CrashReport] Assertion on in UMaterialInterface::InitDefaultMaterials()
UE - Graphics Features - Jun 28, 2017This is a common Mac crash occurring in the 4.16.1 release. I have not found any evidence of it occurring on Windows. The callstack closely matches [Link Removed], which was briefly experienced by ...
Crashes after destroying a skeletal mesh attached via socket name (not bone name), the destroyed mesh remains welded.
UE - Simulation - Physics - Jul 18, 2025On welding physics bodies during primitive component attachment, UPrimitiveComponent::WeldToImplementation() calls GetRootWelded() and then GetBodyInstance() on the returned root. This searches by b ...
[CrashReport] Crash occurring in Phonon::FPhononReverb::ProcessMixedAudio
UE - Audio - Apr 27, 2017This is an early trending crash coming out of the 4.16 Preview. Users have not provided any additional information. From Log:/Game/VirtualRealityBP/Maps/UEDPIE_0_StartupMap.StartupMap (0.006787s) ...