Android app will get crashed if it disable HDR and run with Vulkan API

UE - Platform - Mobile - May 17, 2018

The backtrace is: F/DEBUG   : backtrace: F/DEBUG   :     #00 pc 00070e22  /vendor/lib/hw/vulkan.msm8994.so (A4xCommandBuffer::HwProcessWorkload(QglWorkload*)+585) F/DEBUG   :     #01 pc 0004758d  / ...

Input not recognized from 'Any Key' when set as an Action Mappings Binding

UE - Gameplay - Jul 12, 2018

The 'Any Key' input isn't working when it is assigned in the Axis Mappings menu. If you call 'Any Key' in Blueprint it still functions as intended. This is a regression from 4.19.2 (CL-4033788). T ...

Editor crashes when using Convolution Bloom executing High Resolution screenshot.

UE - Graphics Features - Mar 25, 2019

I confirmed in UE4.21.2. I attached the project to reproducte the problem. ...

255x255 Quads Landscape on mobile is broken

UE - Platform - Mobile - Sep 13, 2019

This issue is reproduced on mobile devices. According to the information from the licensee, it occurs with the following settings.[Link Removed] When executed, the following warning is displayed."L ...

Convert to function to event incorrectly shows up when editing BP Interface Blueprints

UE - Gameplay - Blueprint Editor - Oct 29, 2020

The BP interface graph shouldn't be able to convert functions to events because they are inherently all function graphs.  ...

Landscape grass ignores the scale of the parent actors

UE - Graphics Tools - Terrain - Landscape - Nov 11, 2020

DrawScale = Landscape->GetRootComponent()->GetRelativeScale3D(); ↓ DrawScale = Landscape->GetActorScale3D(); Changing as above will solve the problem. Output log displays this warning: LogPhysic ...

Persistent Local Booleans do not serialize with CPF_SaveGame

UE - Gameplay - Blueprint Runtime - Nov 30, 2020

A persistent local boolean will not serialize even though it is marked with CPF_SaveGame, when other types will (such as an integer).  [Image Removed] [Image Removed] ...

FConsoleVariableBase::SetOnChangedCallback behaves incompatibly with previous versions

UE - Niagara - Jun 17, 2021

FConsoleVariable::OnChangedCallback was changed to a multicast delegate in 4.26. Along with this, FConsoleVariableBase::SetOnChangedCallback was implemented to emulate a single delegate for compatib ...

Artifact on DOF foreground

UE - Graphics Features - Mar 22, 2022

Object blured in foreground with blur radius larger than there size cause artifact ...

[UDN] Static array of UObject pointers gives x3004 error in Material Editor.

UE - Rendering Architecture - Materials - Nov 7, 2022