Unreal Engine Issues
Unreal Engine Issues
Lumen scene view - spot light cut off
UE - Rendering Architecture - Dec 1, 2023This looks to be an issue with shadows in Lumen Direct Lighting, and might be coming from the "Batched lights" pass. ...
Go to end and Stop on level sequences does not work with keep state animations and anim bps
UE - Anim - Anim in Engine - Jan 16, 2024When a skeletal animation section is set to Keep State, and the mesh uses an anim BP and slots to play back the animation, calling Go to End and Stop on the sequence will not pause the animations. ...
GPU event descriptions are not properly formatted in Insight
UE - Foundation - Insights - Jun 24, 2025Context Unreal Insights displays Timing Insights that can include GPU timing information. Rendering code such as FDeferredShadingSceneRenderer::RenderPrePass() generate such events.Problem Certain f ...
FD3D12BindlessResourceManager::GrowCPUHeap will cause GPU heap activation whether it's needed or not
UE - Rendering Architecture - RHI - Sep 11, 2025The ctor of FD3D12BindlessResourceManager implies that GPU heap activation is intended to occur lazily with ERHIBindlessConfiguration::RayTracingShaders, however any call to FD3D12BindlessResourceMa ...
Attempting to override timeline function in child blueprint crashes editor
UE - Gameplay - Blueprint - Sep 24, 2015Attempting to override a timeline within a child blueprint causes the editor to crash. Frequency: 4/4 Crashreporter: [Link Removed] ...
Blur effect caused by command Stereo On
UE - Platform - XR - Jan 22, 2015When the console command "Stereo On" is used to start a game in fullscreen, objects in the level appear with a slight blur. Pressing Alt+Enter will "refresh" the screen and eliminate the blur effec ...
Creating a new level in content browser does not give user option of default/empty level
Tools - Sep 8, 2015Creating a new level in the content browser does not give user the choice of a default or empty level. ...
Ensure on Mac when applying materials from content browser
UE - Rendering Architecture - Materials - Mar 14, 2015User reports that dragging materials into the editor from the content browser causes a hitch, followed by an ensure that. The user could not produce a crash report. Logs included Unable to reprodu ...
Scroll Bars for Certain Editor Windows are Reversed when using Trackpad on Mac
UE - Platform - Apple - Mar 25, 2015Certain scroll bars within the Editor while on a Mac have their directions reversed. i.e. The 'World Outliner', the 'Details' panel within a 'Blueprint.' The suggested workaround I gave to the user ...
Local Position Material Function failing to compile when Packaging for HTML5
UE - Platform - Mobile - Mar 25, 2016After some extensive testing, I could not find any reason why the material function LocalPosition node was failing to compile and defaulting to the world grid material when Packaging for HTML5. I a ...