Chaining AutomationTool Commands leads to an endless loop

UE - Foundation - Cpp Tools - Automation Tool - Nov 23, 2022

Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...

Compilation error in Mac editor builds when adding UWorld::IsStreamingLevelBeingConsidered function

UE - World Creation - Worldbuilding Tools - Jun 30, 2023

This code passes the build when compiled using the windows editor (Visual Studio), but fails when compiled using the mac editor (XCode). Adding ENGINE_API to struct FStreamingLevelsToConsider and ex ...

SkeletalMeshComponent in dedicated server causes memory leak

UE - Graphics Features - Nov 8, 2023

As dedicated server does not have viewport, USkinnedMeshComponent::BoneTransformUpdateMethodQueue array keeps growing and never clear. ...

[Iris] DestroyObjectsPendingDestroy not called on server with no clients

UE - Networking - Iris - Mar 25, 2025

In UNetDriver::TickFlush, UReplicationSystem::PreSendUpdate is not called on the server when it does not have any client connections. PreSendUpdate is where DestroyObjectsPendingDestroy is called fr ...

The Color Picker in the Material Editor doesn't pick colors from windows outside of the editor anymore

UE - Rendering Architecture - Materials - Nov 19, 2014

The Color Picker/Eye Dropper in the Material Editor doesn't register colors from any windows outside of the editor anymore. Changelist #2337679 (Not working here of any changelist created after it ...

Using HideCategories specifier does not hide custom categories

Tools - Aug 6, 2015

If a Component/ variable is given a custom category in code, using the HideCategories specifer inside the UCLASS macro does not hide the category. ...

Instanced Static mesh does not LOD at the same screen distance as standalone mesh

UE - Graphics Features - Nov 11, 2014

DESCRIPTION: When using instanced static mesh component in a blueprint that has LODs the normal distances for LODs are not reflected for the instanced static mesh component. AH Post: https://answe ...

Actor Sequence Component Not Working While Playing in Standalone

UE - Anim - Sequencer - Jun 6, 2017

When using an Actor Sequence Component in an actor blueprint, the sequence will not play in Standalone. In the test, a cube was used and was increasing its scale using the sequence. When playing in ...

Refresh rate for windowed package builds causes frame stuttering

UE - Graphics Features - Aug 24, 2017

THere is an issue where the refresh rate of a windowed packaged game does not match the refresh rate of a monitor correctly, this results in stuttering. This issue does not occur in the editor (PIE) ...

Visual flicker occurs with object during play

UE - Graphics Features - Sep 5, 2017

There is an issue occurring where objects are flickering, and what appears to be jittering at set distances when rendering, increasing the bounds of the mesh pushes the distance for the issue out. T ...