LIVE: ProjectileMovement component does not function when a PrimitiveComponent is missing or removed from the Components

UE - Simulation - Physics - Nov 18, 2014

A projectile brought over from 4.5.1 or earlier that does not have a Primitive Component as the Root, or removing the root from the projectile in 4.6, returns an error: "Movement component [Projecti ...

Lumen lighting in Presentations may appear darker than in Viewport

TM - Rendering - May 22, 2026

Reported in SF [Link Removed] In some scenes with Lumen enabled, interior scene lighting without direct lighting can appear drastically darker in Cloud Presentations than they do in the editor view ...

Animation curves on Montages are not remapped when using a 'Compatible' skeleton

UE - Runtime - Animation - Jun 27, 2023

[Link Removed] From UDN: If you are using the new compatible skeletons feature and you have a Montage with an attribute curve on it, the curve is not correctly mapped to the target skeleton. So ...

Function call inputs do not revert to their Default Values if a variable node is connected and then disconnected

UE - Gameplay - Blueprint - Aug 3, 2015

Function call inputs do not revert to their Default Values if a variable node is connected and then disconnected. Refreshing the call node does not reset the inputs to their defaults. Reproduced in ...

GAS: Duration GameplayEffects applying same GameplayCue tag will on authority end all on-going GameplayCueNotifies when first cue expires

UE - Gameplay - Gameplay Ability System - Aug 16, 2024

When multiple duration GameplayEffects apply a GameplayCue with the same tag, the network authority game instance (standalone & servers) will remove all GameplayCues with that tag from the AbilitySy ...

The number ordering in the Content Browser for assests is not showing in a correct order

UE - Editor - Content Pipeline - Content Browser - Jan 9, 2015

When naming assets in the Content browser, If you include a number within the name, as long as the name is the same as other Assets, the numbers will not be shown in ascending order. Included 2 ph ...

Crash report window does not open on GitHub source builds

UE - Foundation - Core - CrashReportClient - Jun 13, 2016

When using a source build of 4.12, the crash report client window does not open even if Crash Report Client is manually built alongside the editor. UPDATE: Only affecting Source builds from Github. ...

Crash when using Landscape when building lighting with commandlet

UE - Graphics Features - Jun 6, 2016

When using the new Rebuild Lighting commandlet will cause a crash with any level that builds when it has a landscape in the scene. https://github.com/EpicGames/UnrealEngine/commit/f89256dd0efb7d0b ...

Characters with disabled Net Load on Client are loaded twice on a Standalone Client

UE - Networking - Jun 16, 2015

Characters with disabled Net Load on Client are loaded twice on a Standalone Client. This does not occur on the Server. This only occurs in Standalone, not in PIE nor in packaged games. Reproduced ...

Landscape Grasstype warning causes log spam when landscape is streamed in or out

UE - LD & Modeling - Terrain - Landscape - Nov 16, 2016

Using the Landscape Grasstype will generate log spam for the number of Landscape components being used or if using World Composition will generate a log warning for each tile used. The warning ind ...