Adding a Pass By-Reference input parameter to an event dispatcher is allowed, but causes a warning when called.

UE - Gameplay - Blueprint - Nov 19, 2018

You can add a pass-by-reference input variable to an Event Dispatcher, but it will will result in compile warnings, and changes to that input will not affect the value of the variable in the caller. ...

Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled

UE - Niagara - Dec 27, 2018

Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...

[Feature Request] ReferenceViewer: Accept dynamic collection

Tools - Oct 29, 2019

In 4.23, Setting a dynamic collection to the collection filter slot does not display any result. And there are no information about dynamic collection doesn't work in collection filter. (FCollectio ...

shared texture sampler doesn't work in mobile

UE - Platform - Mobile - Jan 5, 2023

In mobile preview or android device in 5.1 release, M_SharedTexture_Inst material does not render properly due to exceeded sampler slot limit. there was no problem in 5.0.3 ...

Water body constructor dirties actor

UE - Graphics Tools - Terrain - Water - May 29, 2024

Modify gets called from AWaterBody constructor: WaterSplineMetadata->Reset(3); WaterSplineMetadata->AddPoint(0.0f); WaterSplineMetadata->AddPoint(1.0f); WaterSplineMetadata->AddPoint ...

Translucent Materials no longer reflect light when using Forward Lighting variable

UE - Graphics Features - Jun 7, 2016

Translucent materials are no longer showing light reflections in scene when using r.forwardlighting 1 with lights. This is a regression from functionality in 4.11.2. This no longer works with 4.12 ...

Selecting vertices from multiple bsp brushes move in relative space and cannot be changed to world space

UE - LD & Modeling - Modeling Tools - BSP - Jan 16, 2015

BSP brushes only move in relative space instead of world space if the user has selected vertices from more than one bsp brush. User cannot change translation to worldspace instead of local space. ...

Zipping up projects with / creates folders to nest the zip in

Tools - Oct 15, 2015

Changing your project name from 'MyProject.zip' to 'MyProject 1/1/1/1/1.zip' creates a folder which nests another folder that eventually leads to the zip. ...

LIVE: Beam Particle Systems distort if camera is placed along the tangent's axis

UE - Graphics Features - Nov 5, 2014

A Beam Particle System that uses a tangent in its source and target setup will distort if viewed from along the tangent's axis. (See attached Picture) This hold true for all 3 axis . ...

Packaged Vehicle and Vehicle advanced templates crash when opened on tvOS and iOS

Tools - Oct 6, 2016

This occurs for both Code and BP Vehicle and VehicleAdvanced projects tested in both DebugGame and Development packaging configurations Devices: tvOS 10.0 iPhone6S+_6241 OS: 9.3.5 ...