Editor crash when trying to launch on an Android target device from a Mac native platform

UE - Platform - Mobile - Jul 28, 2016

The one time it did not instantly crash after pressing the Launch button, I had to Kill -9 <PID> UE4Editor because it was using 129% of my CPU for 50 minutes. ...

Vignette in stereoscopic looks incorrect, entire frame as opposed to each eye

UE - Platform - XR - Apr 6, 2016

Vignette seems to be being applied to the entire frame instead of each eye in stereoscopic, creating a really strange effect in your peripherals when viewed through a HMD. Can also see this effect i ...

WindowsVideoRecordingSystem can start late to record when a Record/Start action is executed.

UE - Media Framework - May 30, 2024

The WindowsVideoRecordingSystem can start to record late when a StartAction is done. Not sure if it starts to record late, or the first seconds of the resulting video are ommited when the mp4 file i ...

Setting the Camera Modifier to 'None' crashes the editor

UE - Gameplay - Jul 14, 2015

The PlayerCameraManager will cause the engine to crash if you set the first element to 'none' under the Camera Modifier. ...

Inconsistent behavior with Owen's trench coat

UE - Simulation - Physics - Character - Jan 25, 2017

In the Cloth level in Content Examples, there is some inconsistent behavior with Owen's trench coat. The coat tails appear heavy (they don't trail behind the character's movement), and the straps a ...

Fill tool does not work on BSP

UE - World Creation - Worldbuilding Tools - Foliage - Mar 6, 2013

 The fill bucket tool under foliage does not work with BSP surfaces. ...

Apex Cloth LOD distortion occurs after World Origin Rebase

UE - Simulation - Physics - Character - Sep 13, 2017

There is a distortion that occurs with Apex cloth when changing the World Origin location. This distortion occurs when you approach after the world origin has been changed. This issue is similar to ...

Niagara Sub UV Index ignored

UE - Niagara - May 16, 2019

Using the Particles.SubImageIndex has no effect on what portions of the a UV are rendered in Niagara. Tested in 4.21.2 (CL - 4753647), 4.22.1 (CL - 6063286), 4.23 (CL - 6533064) ...

MoviePipeline: Can't inherit from UMoviePipelineSetting in BP due to PURE_VIRTUAL

UE - Anim - Sequencer - Oct 28, 2021

IsValidOnMaster/IsValidOnShot need to be BlueprintNativeEvents with a default C++ implementation and allow derived classes to override the function. This is needed so that you can create custom set ...

LiDAR assets do not render in after relaunching the engine

UE - Editor - Content Pipeline - Datasmith - Aug 15, 2023

LiDar point clouds are failing to render when saving and relaunching the project This issue is occurring in //UE5/Release-5.3 @ CL 26560699 This issue is occurring in //UE5/Release-5.3 @ CL 2600198 ...