Some landscape grass instances floating when generated on AMD cards under OpenGL

UE - Graphics Features - May 15, 2015

User is reporting grass at the edge of their landscape being generated floating in the air on a Mac Pro with AMD GPUs. I have been unable to repro this on my Mac Mini with Intel Graphics HD 4000. Q ...

AnimCurveCompressionSettings is reset to CompressedRichCurve at editor startup

OLD - Anim - May 21, 2019

AnimCurveCompressionSettings's codec is reset to CompressedRichCurve when user open the project, so user can not keep the state changed to UniformlySampled. The following code in the constructor of ...

[GPU Lightmass] bake artifact w/ two actors of same static mesh

UE - Graphics Features - Jun 22, 2022

As per a bug report from Pixomondo: if there are two static meshes in the scene and one has a rotation, it gets a GPULM bake artifact as if it is intersecting with the unrotated version of itself. S ...

Listen Server Without Microphone Will Drop Clients with Microphone if Voice is Enabled

UE - Networking - Mar 28, 2017

Listen servers that do not have a microphone hooked up are dropping clients that do have microphones when the client attempts to transmit voice. The log contains the following errors: [2017.03.28- ...

Duplicate child actor created on client in editor

UE - Networking - Nov 17, 2023

This seems to be related to the fix for [Link Removed]. Part of that fix made sure that the child actor component recreates the child actor when GIsReconstructingBlueprintInstances is true, as previ ...

ODSC - Launching a newly created project via UnrealFrontend fails to load some materials and crashes

UE - Rendering Architecture - Materials - Sep 6, 2021

The same repro steps on 4.26.2 will launch the project successfully. Packaging a project once to create complete ShaderMaps will work around the issue. ...

TMap and TSet variables do not display properly when inspecting in VS2015

UE - Foundation - Core - Feb 16, 2016

When inspecting a TMap variable during runtime, the value of the variable is not displayed properly inside VS2015. Screenshots included to show what the TMap variable looks like in VS2013 (ProperTM ...

Default Hot Key or any key it is set to for Mesh Painting Brush Size doesn't work

UE - Editor - Workflow Systems - May 9, 2022

This is a regression – in 4.27.2 the bracket keys do not change the Brush Size even though it is the default hot key. However, changing the hot key to something else works in 4.27.2. Hot Keys are n ...

Set Morph Target not being sent to children of Inherited Mesh

OLD - Anim - Sep 4, 2015

In previous versions of UE4, Set Morph target to call the Inherited Mesh and would result in any children of the Inherited Mesh that shared that morph target name to morph. In UE4.9 this no longer ...

Lumen generates gradated shading even if the light is a constant color sky light

UE - Graphics Features - Lumen - Jul 22, 2022

Lumen generates a gradated shading even if objects are lit by a 360-degree constant sky light.[Link Removed][Link Removed] I looked into this and found that this comes from Spherical Harmonics int ...