Unreal Engine Issues
Unreal Engine Issues
Crash in UHierarchicalInstancedStaticMeshComponent::GetOverlappingSphereCount
UE - World Creation - Worldbuilding Tools - Foliage - May 15, 2018A licensee has reported a regression from 4.18.3 to 4.19.2 that is causing crashes to occur in their project. The crash occurs when walking onto their foliage in a packaged game. This does not happe ...
Calling Finish Recording Output causes a crash in PIE
UE - Audio - Mar 23, 2020The Finish Recording Output node from the Audio Mixer BP Library crashes due to an invalid Path input. This is a regression from 4.23.1 (CL-9631420). This was reported and tested in 4.24.3 (CL-115 ...
High Precision Tangent Basis & Use Full Precision UVs on Skeletal Meshes reset after reimport
UE - Editor - Content Pipeline - Datasmith - Importer - Sep 17, 2020Reimporting a skeletal mesh causes "use high precision tangent basis" & "use full precision UVs" to reset and no longer being applied to the mesh. Reported and tested in version 4.25.3(CL 13942748) ...
Assertion failed on attempt to reload edited Dataprep asset
UE - Editor - Content Pipeline - Visual Dataprep - Feb 28, 2022Editor crashes after user tries to reload Dataprep asset after editing Filter By Actor label card in QAEnterprise project. Regression - Yes(Priority Critical), wasn't able to repro this issue in // ...
Compile Unreal Editor with Visual Studio 2022 can result in an error - Error executing cl.exe, tool returned code: STATUS_ACCESS_VIOLATION
UE - Foundation - Cpp Tools - UnrealBuildTool - Jan 17, 2023Additional information in the comments. Potential work around if VS has a prompt suggesting installing addition components is to install:MSVC v143 - VS 2022 C++ Arm64 Build Tools(v14.33-17.3)MSVC v ...
FHLSLMaterialTranslator::GetMaterialEnvironment can crash or not load UMaterialParameterCollections
UE - Rendering Architecture - Materials - Apr 30, 2025In UE 5.5, the Editor may crash in FHLSLMaterialTranslator::GetMaterialEnvironment when loading materials with Material Parameter Collections, likely due to async loading. Calling ParameterCollectio ...
Lyra 5.5 - LAS_ShooterGame_SharedInput has got a missing reference on InputMapping #1
UE - Gameplay - Input - Jan 27, 2025The templated Lyra project for 5.5 is missing a reference to IMC_Default_KBM on /ShooterCore/Experiences/LAS_ShooterGame_SharedInput because it looks like IMC_Default_KBM was renamed to IMC_Default. ...
Crash when deleting BindingOverrides if the target property is left open on the details panel
UE - Anim - Sequencer - Sep 22, 2023Crash if opening ALevelSequenceActor::BindingOverrides in the details panel and run a process that empties the BindingOverrides elements. Workaround: FMovieSceneObjectBindingID FMovieSceneObjectBi ...
HTML5 - View does not redraw properly after returning from Fullscreen
UE - Platform - Mobile - Apr 26, 2017When returning from fullscreen mode, the view is redrawn as the resolution of windowed mode, but the camera's view only draws: what was the bottom left corner was when in fullscreen (quadrant 3). ...
Is Valid is true in PIE but prints false in package build
UE - Editor - UI Systems - May 18, 2017When using the IsValid node inside of a Widget blueprint with the Widget as the selected asset, the string will print as true in the Editor, but prints as false in the packaged build of the game. ...