Unreal Engine Issues
Unreal Engine Issues
[CrashReport]libUnrealEditor-RenderCore!FRDGEventScopeOpArray::Execute(FRDGBreadcrumbState&) [RenderGraphEvent.cpp:149]
UE - Rendering Architecture - RHI - Jun 6, 2022Generated from CrashReporter Error Message:Assertion failed: !EnumHasAnyFlags(StencilAccess, AnyCopy) [File:./Runtime/VulkanRHI/Private/VulkanBarriers.cpp] [Line: 439] Only the Stencil being transi ...
Engine Crashes When Trying To Reimport Skeletal Mesh For One That Has No Clothing Data
UE - Simulation - Physics - Character - Jan 17, 2020The engine crashes when trying to reimport a skeletal mesh that has no clothing data. This seems related to https://jira.it.epicgames.net/browse/UE-86948. Found in 4.24.1 CL#10757647 Reproduced in ...
Hidden Shadows Aren't Rendered When Raytracing Is Enabled
UE - Graphics Features - Lumen - Mar 13, 2020Hidden shadows aren't rendered when ray tracing is enabled. Found in 4.25 Preview 2 CL#12055273 Reproduced in 4.23.1 CL#9631420, 4.24.3 CL#11590370, 4.26 Main CL#12123513 ...
Project description is defaulted to 'Unreal Engine' when checking the properties after launched
Tools - Oct 26, 2016The description of projects packaged is defaulting to Unreal Engine. This is happening in development and shipping builds on Windows. Occurring in: 4.10.4, 4.11.2, 4.12.5, 4.13.1 and 4.13.2 ...
Generated HLOD Actor not Registered when using the Size Map Tool
UE - World Creation - Worldbuilding Tools - HLOD - May 3, 2017When using the Size Map to view the memory consumption of a generated HLOD actor, it reports it as missing. This could serve to be problematic when using a large number of HLOD actors to optimize t ...
WmfMedia: Cannot load media with multiple tracks of the same type
Media Framework - Aug 31, 2016The currently implementation of WmfMedia player initialization is incorrect in that it creates a playback topology that includes all source tracks, but some of them are disabled. The intent was to e ...
Editor Crashes if GetMaterialIndex is called with an invalid slot name
UE - Graphics Features - Feb 8, 2017Calling Get Material Index node with an invalid slot name will produce a return value of -1. Passing this value to a Get Material node causes the editor to crash. ...
Steam Sessions fails to create when using the Create Session node
Docs - Nov 30, 2021This is a Regression. 4.26.2 - Binary - no issue creating a session. 4.27.1 - Binary - no issue creating a session if you convert a previously working 4.26.2 project. 4.27.1 - Binary - Fails to c ...
Landscape raytracing geometry always updates every frame
UE - Graphics Features - Ray Tracing - Apr 11, 2025LOD 0 Landscape meshes are always updated in FLandscapeComponentSceneProxy::GetDynamicRayTracingInstances because* r.RayTracing.Geometry.Landscape.LODsUpdateEveryFrame* (GLandscapeRayTracingGeometry ...
Inherited UserWidgets can't create animations that bind to widgets on their parent's WidgetTree
UE - Editor - UI Systems - UMG - Nov 7, 2022Animating an inherited widget from a child UserWidget class appears to work, but the bindings don't resolve properly and the animation is null at runtime. This workflow should either be supported, o ...