Unreal Engine Issues
Unreal Engine Issues
ios threads freeze for almost one second when notifications pop up
UE - Platform - Apple - Mar 18, 2021see the UDN .Setting bOtherAudioPlayingNow to always false can workaround the problem, but it's better to have a more robust solution. ...
Cross does not respond or crashes when "collide with attached children" is enabled
UE - Simulation - Physics - Apr 13, 2021Fatal error! Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000 0x00007ffb09d32bb9 UE4Editor-Engine.dll!USkeletalMeshComponent::CopyClothCollisionsToChildren() [D:\ ...
HLOD build fails depending on the value of Loading Range in the World Settings
UE - World Creation - Worldbuilding Tools - HLOD - Jun 14, 2022HLOD actors are generated on the outliner, but no geometry is generated. An error occurs in the output log. ...
Editor/Game Ensure hit with RayTracing enabled on AMD GPU
UE - Graphics Features - Ray Tracing - Feb 4, 2025A Static Mesh asset will trigger an ensure when generating building the ray tracing acceleration structure on AMD GPUs. ...
FX.TestGPUSort fails on Vulkan
UE - Niagara - May 5, 2025“FX.TestGPUSort” fails on both PC Editor and Android with Vulkan RHI. ...
USourceControlHelpers::IsEnabled crashes shipping builds
UE - Editor - Workflow Systems - Aug 11, 2025The licensee has reported that the naming of the IsEnabled node is not descriptive enough and can be easily confused with other IsEnabled functions or variables. The Licensee has requested that the ...
Downsampled SceneColour textures are not invalidated after ComposeToNewSceneColor when TSR is enabled leading to AfterMotionBlur materials not rendering bloom
UE - Graphics Features - Sep 11, 2025When an emissive AfterMotionBlur material is used with TSR, Bloom is not applied to the material. The cause for this appears to be that AfterMotionBlur materials are composed to a separate texture ...
Scaling pivot ignores pivot being used
UE - Gameplay - Apr 20, 2015Scaling pivot of an actor does not scale correctly unless used for all directions. ...
BSP brushes break when non-standard subtractive bsp brushes are used
UE - LD & Modeling - Modeling Tools - BSP - Mar 19, 2015if a nonstandard bsp brush is used as a subtractive brush, additive bsp brushes will break and show incorrect holes when in contact with the subtractive bsp. ...
Rotating terrain with heightmap causes black splotches on terrain
UE - LD & Modeling - Terrain - Landscape - Jan 26, 2015Rotating a landscape with a heightmap causes lightmass to break, rendering black splotches across terrain after building lighting. ...