Can't undo blueprint/material movement done by arrow keys

UE - Gameplay - Blueprint - Feb 8, 2017

When moving nodes in materials and blueprints using the undo option doesn't undo the movements made by the arrow keys. This issue affects anything that uses nodes on an event graph. ...

[CrashReport] UE4Editor_Kismet!SBlueprintPaletteItem::OnNameTextCommitted() [sblueprintpalette.cpp:1319]

UE - Gameplay - Blueprint - Sep 28, 2017

This is a trending crash after the 4.17.2 hotfix, although it has existed since the 4.16.1 hotfix. User Descriptionswas creating a new graph in a blueprint ...

OnUrlChanged does not fire on mobile

UE - Platform - Mobile - Sep 28, 2017

When using On Url Changed event on mobile devices, the event does not appear to fire as expected. Tested on iphone 5 As a note: The function GetUrl appears to be similarly affected. ...

Scene Capture Component "SetShowOnlyActors" no longer exposed to Blueprints

Tools - Aug 6, 2018

SetShowOnlyActors of category Scene Capture Component is no longer exposed to Blueprints. Also missing in Main CL# 4247867 ...

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.  ...

Undoing after opening a bluperint will delete nodes in a math expression

UE - Gameplay - Blueprint - Oct 11, 2019

Math expressions fail to compile when performing an Undo after opening a blueprint ICE - wrong output link - ((1 + x) * (sin(myVar))) - (2.400000 / (rand())) ...