Sky Atmosphere Material Nodes not Correctly Represented in the Surface Cache for Nanite Enabled Static Meshes

UE - Graphics Features - Apr 1, 2025

When nanite is enabled on a static mesh, lighting contributions from Sky Atmosphere material nodes are not incident on the static mesh and no longer present in the overall lighting of the scene. Th ...

Contact Shadow artifacts with ray lengths despite length

UE - Graphics Features - Nov 17, 2016

Contact Shadows have more shadowing errors with lower to mid values than in 4.13 release when the feature was still considered experimental. Even low Contact Shadow Length value is causing issues. ...

Landscape DFAO shadowing artifacts in Standalone and packaged

UE - Graphics Features - Oct 25, 2016

The Heightfield from DFAO when playing in Standalone or a packaged game has darkened shadow artifacts for the level. Workaround: Use r.AOGlobalDistanceField 0 to disable the Global Distance Field. ...

The packaged folder for a Linux project is more than twice the size of a windows folder

UE - Platform - Linux - Aug 22, 2016

LinuxNoEditor folder from a packaged Linux game is more than double the size of a packaged Windows project folder (WindowsNoEditor). Results from packaging an empty Third Person Project Windows (6 ...

Setting a value Material Parameter Collection to Material will cause crash

UE - Graphics Features - May 2, 2016

Adding a Material Parameter collection to a material, setting its value, then saving the material will cause a crash. This was only able to be reproduced on Mac and did not affect the Windows versio ...

Niagara Particles in Mesh Shape Don't Render in Scene or Editor Preview

UE - Niagara - Dec 19, 2019

Niagara particles aren't rendered in the Niagara Editor Preview or the scene when an emitter is in it. Found in 4.24.1 CL#10756747 Reproduced in 4.25 Main CL#10808197 ...

OSVR fatal error while playing in -game

UE - Platform - XR - May 6, 2016

Found on: //UE4/Dev-VR CL-2967563 About 1/6th of the time I'd start a -game instance and go in to stereo on the OSVR, the game would seemingly just close itself. I say close as opposed to crash, si ...

[AI] Nav Modifier Volume inside of a Level Instance does not update navmesh when moved

UE - AI - Navigation - Oct 3, 2023

The issue is seen when using a normal navmesh inside of a World Partitioned level. Adding a Nav Modifier Volume to a Level Instance, and placing the Level Instance in the world will affect the navme ...

LIVE: Attach Actor to Component crashes the editor when used after Set Simulate Physics

UE - Simulation - Physics - Oct 31, 2014

The user has attached a small project at the link to demonstrate the issue. Occurs in 4.5.1 and well as Main (//depot/UE4/Promotable-CL-2239587). Crash Reporter: [Link Removed] ...

[CrashReport] UnrealEditor-Engine!SkeletalDebugRendering::DrawBonesFromPoseWatch(FPrimitiveDrawInterface *,FAnimNodePoseWatch const &,bool) [SkeletalDebugRendering.cpp:213]

UE - Anim - Runtime - Jan 3, 2023

Generated from CrashReporter 1 user reported: "Crash when using "Toggle watch pose" in any node of the animation blueprint. The crash happens when you save the ABP after enabling toggle watch pose ...