Changing project settings in the Editor can result in duplicate entries in the project's .ini files.

Tools - Dec 30, 2014

Changing the packaging settings for a project in the Editor results in double entries in the .ini file for the project. This seems to have worked fine in 4.5.1 (CL 2336109). Found broken in 4.6.1 ( ...

Sound Cues report incorrect MaxDistance when using SoundNodeParamCrossFade

UE - Audio - Apr 23, 2015

Short duration sounds (< 1.0 seconds) trigger a check on max distances by sound nodes in a sound cue. Sound cues which use SoundNodeParamCrossFade are reporting 1.0 as the max distance and thus resu ...

Reflection capture doesn't work with full dynamic lighting

UE - Graphics Features - Dec 27, 2019

The Reflection Capture is not showing reflections for anything but the Sky Light when all Lighting is set to Fully Dynamic. This was reported and tested in 4.24.1 (CL-10757647). This was reproduce ...

UBT crashes when doing an incremental build

UE - Foundation - Cpp Tools - UnrealBuildTool - Aug 9, 2017

There is a consistent crash when incrementally compiling headers containing generated code. The code for launching UHT accesses a property which is null when compiling with the UBT makefile. ...

StompMalloc throws error in Embree setup

UE - Graphics Features - May 27, 2021

Licensee has proposed a potential workaround (initialising vertex array with at least 1 element). ...

Crash when using automated groom import

UE - Editor - Content Pipeline - Import and Export - Jan 5, 2021

UDN customer reported that using automated groom import through Blueprint was crashing. This can probably be reproduced with a Python script using an asset import task with the automated flag set to ...

Nvidia DLSS plugin causing crash in PIE

UE - Graphics Features - Feb 10, 2023

The editor is crashing with the 5.1 Nvidia DLSS plugin enabled after performing PIE. This issue is occurring in Binary //UE5/Release-5.1 at CL 23901901 This issue is NOT occurring in Binary //UE5/ ...

Landscape surface type always return "Default"

UE - Simulation - Physics - Dec 26, 2019

The behavior in this bug is a little odd since it is not present in any project that is upgraded to 4.24.1 (CL-10757647), but only those that are created directly in 4.24.1. The behavior is also a l ...

Textures become darker on BSPs when converted to a Static Mesh using Baked Lighting

UE - LD & Modeling - Modeling Tools - BSP - Jan 16, 2020

A BSP converted to a Static mesh shows a much darker texture material when built with Static/Baked lighting. This was reported and tested in 4.24.1 (CL-10757647). This was reproduced in 4.23.1 (CL ...

Crash when referencing GearVRController

UE - Gameplay - Blueprint - Jul 10, 2017

SamD and I noticed that in 4.17 the GearVRController component wasn't appearing in searches in the editor. This crash doesn't occur in 4.16.1 ...