Unreal Engine Issues
Unreal Engine Issues
Editor Crashes After Building Lighting with Blueprint Set to Native Parent Class: Light
UE - Graphics Features - Oct 26, 2017Whenever a Blueprint set to Native Parent Class: Light is placed into a level, Editor crashes after building lighting. The Blueprint does not need to contain an actual light component to crash the e ...
Japanese language input keys/Menu key zoom out graph view
UE - Editor - UI Systems - Localization - Oct 31, 2017When using a Japanese keyboard, using Japanese language input special key(halfwidth/fullwidth/kanji key) zooms out graph view in BP editor and Material editor. It seems the menu key makes the editor ...
Datasmith & mikktspace tangent cause entities to glow with lightmaps
UE - Editor - Content Pipeline - Datasmith - Exporters - Feb 22, 2019The steps above are reduced to their simplest expression. I appears that several customers complained about lightmap baking resulting in glowing objects. This typically happens on interior door fr ...
Getting Fullscreen or Windowed Resolutions doesn't fully execute on Linux
UE - Rendering Architecture - RHI - Oct 28, 2019When using "Get Supported Fullscreen Resolutions" on UE when built with Vulkan, no values are printed out. This is an issue with any platform that builds UE with -vulkan, not just Linux. In Engine ...
ZenGarden or project with MSAA enabled crashes on iPhone 6 and 6+
UE - Platform - Mobile - Jul 19, 2017Zen Garden crashes on the iPhone 6+ before anything appears onscreen. Occurred on: iPhone 6+ on 10.3.2 Didn't occur on: iPhone 6S on 10.3.2 ...
Translucent materials with tessellation
UE - Graphics Features - Oct 3, 2017When using a material with a translucent blend mode, you can not use the lighting modes "Volumetric PerVertex NonDirectional", or "Volumetric PerVertex Directional" and the Tessellation settings "PN ...
UPoseAsset::SetBasePoseName() always sets INDEX_NONE
UE - Anim - Runtime - Apr 11, 2025UPoseAsset::SetBasePoseName() does not correctly set the BasePoseIndex when a valid pose name is provided. Regardless of input, the pose defaults back to ReferencePose. Upon inspection of the implem ...
StreamableManager does not apply CoreRedirects to loaded paths
UE - Framework - Jun 12, 2025When loading soft object paths directly, it applies any important CoreRedirects by calling the function FixupCoreRedirects if the initial load attempt fails. In the repro steps, this will apply this ...
WorldCoordinate3Way produces Incorrect Axis Lerps
UE - Graphics Features - May 18, 2016The Material Function WorldCoordinate3Way seems to incorrectly perform the Lerps from the axis contributions of the normals. An example is show here, with the left objects using the version that com ...
Mesh data will be deleted from Static Mesh if added as a Hierarchical Instanced Static Mesh Component through blueprint
UE - Gameplay - Aug 10, 2017Mesh data will be deleted from the Static Mesh if added as a Hierarchical Instanced Static Mesh Component through blueprint. All of the mesh data (actual geometry) and LODs will be deleted from the ...