This user's project crashes when instanced levels and the player pawn are unloaded and destroyed

UE - Gameplay - Jun 25, 2015

This user's project crashes when instanced levels and the player pawn are unloaded and destroyed. This occurs in the ProjectLevelGameMode Blueprint, in the Touched Finish Point commented area. This ...

Horde server fails to build Docker image

UE - Foundation - Horde - Server - Apr 1, 2025

If you attempt to build the Horde server Docker image right now it fails unless you have some of the layers cached or a nuget proxy/cache that has cached some packages. JetBrains have renamed their ...

Distance Cull Fade Node on Material does not work with Skeletal Mesh

UE - Rendering Architecture - Materials - Apr 22, 2022

The licensee reports that this issue is caused by the following code not performing a Buffer update. .\Engine\Source\Runtime\Renderer\Private\ShaderBaseClasses.cpp void FMeshMaterialShaderElementD ...

Two-sided geometry cannot be enabled for re-imported models when converting from previous versions

TM - Interoperability - Jan 28, 2025

When converting files from previous versions of Twinmotion to Twinmotion 2025.1, re-importing any existing imported geometry will cause the geometry to be re-imported with two-sided geometry disable ...

LogUMG: Error: The requested size for SRetainerWidget is 0. W:739 H:0 when opening or updating a curve using the StackedCurve view

UE - Anim - Sequencer - Feb 6, 2023

The following error is generated in the Output log whenever a Wave Table is opened or any of the graphs are modified. It also occurs when adding an Input to a Sound Modulation Parameter patch or add ...

Crash occurs when a Const Vector 4 and a Screen Position node are passed into a LERP then connected to the Result Node

UE - Rendering Architecture - Materials - Oct 13, 2022

Tested in: //UE5/Release-5.1 CL22346211 Crashed with Assertion //UE5/Release-5.0 CL20979098 Crashed with Assertion Crash occurs when a Constant Vector 4 and a Screen Position node are passed into a ...

GetTeamAttitudeTowards is called before AI Controller can spawn and gets a null value

UE - AI - May 6, 2019

Licensee is experiencing an issue where GetTeamAttitude is being called before the AI Controller's Construction event. This results in the warning "GetTeamAttitudeTowards - Pawn is null!" being outp ...

Motion Controller Components Don't Track Motion Controllers

UE - Platform - XR - Jan 17, 2020

The motion controller component doesn't track motion controllers correctly. This worked in 4.23. If you create a VR template project and follow the repro steps this issue doesn't occur. This was t ...

Morph targets unable to find B Material

OLD - Anim - Aug 2, 2016

Morph targets are not changing colors in some instances and just not doing anything in others(1.1 in Content Examples - MorphTargets) The output log is spammed with: LogMaterialParameter: B materia ...

Pasted material function nodes lose their connections

UE - Rendering Architecture - Materials - Dec 3, 2019

The fix for [Link Removed] caused a regression where links to material nodes no longer carry over when a group of nodes is copied and pasted ~ User submitted Image and repro steps appended. I conf ...