Hard shadow edges appear when using Displacement Fade on a Nanite tessellated landscape

UE - Rendering - Graphics Features - Shadows - Feb 2, 2026

A hard shadow edge occurs when displacement fade is enabled on a Nanite landscape with tessellation. This occurs on the edge between two clipmap levels of the VSM. The artefact can be somewhat red ...

Broken TextureTest BP in Landmass plugin base content

UE - Graphics Tools - Terrain - Jul 15, 2024

It appears that the Landmass plugin has a content dependency on the BlueprintMaterialTextureNodes plugin. If the BlueprintMaterialTextureNodes is not loaded, then the blueprint "/Landmass/Landscape ...

Launching HTML5 from Project Launcher causes an error

UE - Platform - Mobile - Dec 13, 2016

Projects launched from project launcher are receiving an expression error on Google Chrome and FireFox. ...

Subsurface Profile material does not render properly in the Material Editor or Material Instance Editor

UE - Graphics Features - Dec 15, 2016

Note: I looked for a similar or related bug but could not find one. Sorry if it's here and buried. Subsurface Profile materials render differently in the Material Editor Preview pane than they do a ...

Using a Shading Model node set to Unlit results in an invalid material with FromExpression domain

UE - Rendering - Architecture - Materials - Feb 29, 2024

Create a materialSet its domain to From ExpressionRecreate the node graph as in the screenshot Note that the preview sphere is black. ...

Compile Unreal Editor with Visual Studio 2022 can result in an error - Error executing cl.exe, tool returned code: STATUS_ACCESS_VIOLATION

UE - Foundation - Cpp Tools - UnrealBuildTool - Jan 17, 2023

Additional information in the comments. Potential work around if VS has a prompt suggesting installing addition components is to install:MSVC v143 - VS 2022 C++ Arm64 Build Tools(v14.33-17.3)MSVC v ...

Normal tangents aren't recalculated on skeletal meshes with bone transforms when recompute tangent is enabled

UE - Graphics Features - Nov 9, 2016

Enabling recompute tangents on a skeletal mesh does not recompute tangent normals for translated parts of the skelmesh. If you addr.SkinCache.CompileShaders=1r.SkinCache.Mode=1r.SkinCache.Recompute ...

Using the arrow keys to navigate the Attach To dropdown causes accidental selection

Tools - Sep 27, 2016

When using the arrow keys to navigate the Attach To menu, the first actor that is highlighted will automatically be selected instead of allowing the user to select the actor they wish. Regression?: ...

Texturing: RC 1.5 texturing hangs, RC 1.4.2 works fine with same dataset and workflow

RC - Texturing - Feb 13, 2025

Tested on the provided project, it looks like the unwrap was provided, but then the process stuck. I also checked the Task manager and there wasn't almost any activity for RealityCapture.[Image Remo ...

Cull Distance Volumes Affecting Actors After Being Deleted

UE - Graphics Features - Oct 7, 2019

Cull Distance Volumes Affecting Actors After Being Deleted. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, and 4.24 CL# 9428115 ...