Grandchild actor with IsEditorOnly enabled is duplicated during save the level.

UE - Gameplay - Components - Dec 6, 2019

IsEditorOnly is not reflected in grandchild actor when parent/child/grandchild are constructed with ChildActorComponent. This causes the issue that actor will increase incorrect when save the level. ...

Sequencer: Correctly Export Transform tracks with multiple/blended sections

UE - Anim - Sequencer - Dec 5, 2019

When exporting an object or camera with more then once section we currently only just export the first section, not the result of any blended/ overlapping sections or even adjacent sections.  See ...

SetCollisionProfileName and SetCollisionEnabled aren't working in Construction Script

UE - Simulation - Physics - Dec 5, 2019

This is a regression from 4.22.3 (CL-7053642) where this setup executed as expected. Toggling Collision Profiles in 4.23.1 (CL-9631420) and onward do not affect the Static Mesh and it acts as if it ...

Crash creating local variable in ABP function

OLD - Anim - Dec 5, 2019

Creating a local variable in an ABP function crashes ...

Editor compile failure in UnrealEngineHTML5 -- unsafe use of type 'bool'

UE - Platform - Mobile - Dec 4, 2019

Severity Code Description Project File Line Error ...

Physics does not replicate for non root components

UE - Simulation - Physics - Dec 4, 2019

A root component can be properly replicated, but non-root components won't have their collision replicated, only their visible mesh.  ...

AudioMixer has private include in public header

UE - Audio - Dec 4, 2019

It is possible to receive a compilation error when including a public header (AudioMixerDevice.h) because it includes a private header (AudioMixerSourceManager.h)  Tested In :  4.22.3 CL#7053642  ...

[Feature Request] Save settings before PIE or Crash

UE - Virtual Production - Tools - Multi-user - Dec 4, 2019

User is requesting there be a feature where any unsaved content and settings are saved if the user receives a crash.  User Description: We often edit our preferences and UE4 crashes much more oft ...

Gameplay Tag Query Variables Don't Retain Custom Default Values in Custom Structs

UE - Gameplay - Dec 4, 2019

Gameplay Tag Query variables in custom structs created via the content browser do not retain custom default values. Found in 4.23.1 CL# 9631420 Reproduced in 4.24 Preview 4 CL3# 10387632, 4.25 Main ...

Pasting a material graph breaks connection to any material function nodes.

UE - Rendering Architecture - Materials - Dec 4, 2019

Pasting a material graph breaks connection to any material function nodes. ...