Screenshot console command does not work properly on mobile devices

UE - Platform - Mobile - Feb 3, 2016

Screenshots taken by the console command Shot or HighResShot are not being saved on Android or iOS devices. ...

Details customizations with object references can cause map loading to fail.

Tools - Jan 23, 2018

This crash can be reproduced by adding a graph editor to a details customization.  This crashes because the graph editor is holding a strong reference to the graph object on the actor component duri ...

AI character does not recognize controller/behavior tree input when spawned during game

UE - AI - Jun 21, 2015

AI character in user project does not react to behavior tree commands when spawned during play. In the specific example attached, the first pawn works correctly, but when removed from play and a n ...

Popups are causing a hang

UE - Platform - Mobile - Feb 8, 2016

Users are reporting that a system pop up such as a timer or low memory is causing a hang and crash. ...

SpeedTree Billboards rendering with Incorrect Material

Tools - Dec 12, 2016

Material Billboards for SpeedTree assets are rendering with the incorrect material. This can occur to any pre-existing project, or a new project with imported SpeedTree content using both 3d LODs an ...

OBB files per architecture are not unique so Play Store flags it when uploading for different store versions

UE - Platform - Mobile - Aug 16, 2019

The Play Store by default on uploading an OBB will check it against the others uploaded so if you are uploading multiple APKs built for different architectures in the same packaging session the OBB ...

Blending does not work when materials using material layers are set to Post Process Volume

UE - Rendering Architecture - Materials - Dec 14, 2022

Blending does not work as intended when Material Layers are used in post process. ...

Components added in Blueprint that want initialisation are not maintained by RerunConstructionScripts

UE - Framework - Blueprint - Feb 14, 2024

When a native component that wants initialisation is added to a Blueprint actor in the Blueprint editor, the initialisation state of this component will not be correctly preserved by RerunConstructi ...

Enabling "ShowFlag.PhysicalMaterialMasks" causes editor crash when physical material masks aren't yet imported.

UE - Simulation - Physics - Dec 3, 2024

When there is a physical material mask asset that has been created and applied to a mesh in the level without having a texture source imported yet, and then "ShowFlag.PhysicalMaterialMasks" is enabl ...

GAS: OnTagUpdated() not called when calling SetLooseGameplayTagCount()

UE - Gameplay - Gameplay Ability System - Dec 10, 2024

Context AbilitySystemComponent has a virtual function virtual void OnTagUpdated(const FGameplayTag& Tag, bool TagExists); that gets called when a gameplay tag gets added or removed, so whenever ...