Unreal Engine Issues
Unreal Engine Issues
Renaming an asset set to Sequencer's Payload causes the reference to be removed after restarting the editor.
UE - Anim - Sequencer - Sep 29, 2022Renaming assets set to Sequencer's Payload will resolve the reference after restarting the editor. This is probably due to the fact that FemaleSceneEventPayloadVariable::Value is a String type. This ...
Adding a water island when substrate is true will flatten the landscape
UE - Rendering - Features - Shading Models - Jul 20, 2023When a landscape weightmap or heightmap update is required, ALandscape::ResolveLayersTexture is called via the ALandscape::UpdateLayersContent() The problem appears to be that all pixels in the Out ...
When creating a new NiagaraSystem using existing system, the DefaultEffectType set in ProjectSettings is not reflected.
UE - Niagara - Jul 24, 2023When creating a new NiagaraSystem, the DefaultEffectType set in ProjectSettings should be reflected. If another EffectType is already set, it should be respected. The problem here is that when creat ...
Skylight Intensity causes brightness discrepancy between the pathtracer and realtime renderers
UE - Graphics Features - Aug 26, 2024In a scene without a sky sphere, increasing the skylight intensity will cause the sky to brighten in the pathtracer. Other renderers do not brighten the sky, and the intensity increase is applied on ...
Ensure when using ellipsis overflow method with very small Slate text boxes
UE - Editor - UI Systems - Slate - Aug 12, 2024The Ellipsis overflow method on text widgets can cause an ensure to trip as a result of a render batch being sent with no indices. We could guard against this in SlateRHIRenderingPolicy by checking ...
Synthetic benchmark is affected by Scalability Settings
UE - Rendering - Architecture - RHI - Feb 19, 2025Sumo Digital Ltd. has reported that the synthetic benchmark has skewed GPUIndex scores when changing graphics scalability settings (i.e. r.LumenScreenProbeGather.DownsampleFactor). They are currentl ...
Crash at compile time when using a VariableSet node with a local variable created by pasting a private property
UE - Framework - Blueprint - Oct 7, 2025When a property is created in this way, a local variable with a Private flag is generated. Since such a variable is generally not desirable, it would be better to remove the Private flag upon pastin ...
HISM flickering when any character is visible
UE - Rendering - Architecture - RHI - Jan 12, 2026On an NVIDIA GPU, Instanced Static Meshes can flicker when a Groom card or mesh LOD is visible. This appears related to an issue rendering the ISM into the Scene Depth. At the end of the Prepass, t ...
Compiler Error when including InstancedSkinnedMeshComponent.h
The UE_EXPERIMENTAL macro is not used correctly in InstancedSkinnedMeshComponent.h. It should come after the 'class' keyword & before UInstancedSkinnedMeshComponent as specified in the documentation ...
Virtual Texture does not stream high-resolution data when assigned as a UI material to a widget.
UE - Rendering - Architecture - Mar 23, 2026When a Virtual Texture is applied as a UI material, there is no associated geometry, so it does not explicitly request the loading of high-res virtual texture tiles. ...