Extreme hitching when using profile command (stat startfile) + other stat commands

UE - Foundation - Core - Apr 19, 2018

Running the "stat startfile" command in a 4.19 project causes constant editor hitching. Running the same command in a 4.18 project does not produce any hitching by comparison. ...

Cascade ParticleRelativeTime Outputs Constant 0 on Mobile

UE - Niagara - Aug 29, 2018

Cascade ParticleRelativeTime outputs constant 0 on mobile. Found in 4.19 CL# 4033788, 4.20 CL# 4302132, 4.21 CL# 4321618 ...

Audio: Spatialization: Set Allow Spatialization BP command is not functioning

UE - Audio - Oct 1, 2018

Reported via AnswerHub on 4.19 and confirmed in Dev-Audio, the Set Allow Spatialization widget in BP appears to not be functioning - as the audio does not become spatialized in playback. ...

Disabling "Include Debug Files" for a Windows Distribution build does not exclude the debug files

UE - Foundation - Cpp Tools - Automation Tool - Nov 1, 2018

The "Include Debug Files" option being disabled is not taken into account for "For Distribution" builds. The debug files are included no matter what this is set to. Regression?: Yes This did not oc ...

Input Axis Mapped to 'Pinch' no longer sends Axis Value

UE - Platform - Mobile - Feb 15, 2019

Axis Event mapped to pinch no longer returns values. Working in 4.19 Confirmed on Android + iOS  Confirmed in MAIN 4.23 @ CL 4961509 ...

Severe ghosting on animated objects when camera stops moving in sequences when using path tracer

UE - Graphics Features - Lumen - Aug 2, 2019

Pixels seem to stop updating in the path tracer when a camera stops moving in sequence. Old color values from objects that have moved seem to still affect pixels they should not.  ...

Custom Time Dilation has no effect on Player Camera Manager

UE - Anim - Sequencer - Jun 10, 2020

It seems like setting Custom Time Dilation on the Player Camera Manager does not affect the amount of time it takes to blend between cameras with Set View Target With Blend. ...

Geometry Collection behavior does not change when changed by BP

UE - Simulation - Physics - Destruction - May 2, 2022

Reproduced 6/6 times. This seems to affect all "Set" functions for Geometry Collection Components, such as Setting Object Type from Static to Dynamic, or changing Collision Type. ...

Crash when removing Blueprint function

UE - Gameplay - Blueprint Compiler - Apr 23, 2018

The Editor crashes whenever the reference to the "DeleteThisFunction" function is deleted. ...

Crash during save level and successive load level

UE - LD & Modeling - Terrain - Landscape - Apr 4, 2018

Changing the Max LODLevel on a landscape causes a crash in content examples. ...