Single frame of blackness during iOS startup

UE - Platform - Mobile - Apr 13, 2017

When a project is launching on an iOS device, there is a momentary flash between when the splash screen stops displaying and the game window opens. This flash is present even when using transition ...

Impossible to reparent blueprint class that has a broken parent class when using compilation manager

UE - Gameplay - Blueprint Compiler - Dec 8, 2017

Alternatively use BP_ParentClassIsMissingType in QAGame ...

Engine Crashes When Trying To Reimport Skeletal Mesh For One That Has No Clothing Data

UE - Simulation - Physics - Character - Jan 17, 2020

The engine crashes when trying to reimport a skeletal mesh that has no clothing data. This seems related to https://jira.it.epicgames.net/browse/UE-86948. Found in 4.24.1 CL#10757647 Reproduced in ...

Media doesn't play from the beginning on android

UE - Platform - Mobile - Feb 22, 2021

SkyLight IBL looks blurry on Android

UE - Platform - Mobile - May 12, 2021

Virtual Scouting Interactor / VR Scouting Tools Menus appear Black when using real-world lighting values (i.e. 70k lux)

UE - Virtual Production - Tools - VR Scouting - Sep 27, 2021

The Virtual Scouting tools appear black in scenes using real-world physical lighting values due to their UI Material Domain since they do not have an emissive channel and do not accommodate viewport ...

Instance added Child Actors are not initialized when using world partition

UE - World Creation - Worldbuilding Tools - World Partition - Apr 13, 2022

A Child actor spawned via a Child Actor Component that is added to an actor instance using the Subobject Editor is not initialized when using world partition. The spawned child actor is not present ...

Blueprint Interface Implemented and Inherited Interface naming is reversed

UE - Gameplay - Blueprint Editor - Nov 4, 2022

Naming for Inherited Interfaces and Implemented Interfaces is reversed in 5.1 and Main. Inherited interfaces act like implemented interfaces, and inherited interfaces appear listed under Implemented ...

Newly added local variable types are not consistent with prior variable type

UE - Anim - Rigging - Control Rig - Nov 27, 2023

It seems that local variable creation in control rig isn't following the pattern with regular control rig variables (and general blueprint variables) where the last created and/or edited variable ty ...

IME does not work in EditableTextBox in WidgetComponent

UE - Editor - UI Systems - Apr 5, 2024

WidgetComponent controls widgets through VirtualWindow, but VirtualWindow does not have HWND, so IME cannot be enabled. The following workaround enables IME activation. void FSlateEditableTextLay ...