Duplicated Blueprint Causes Incorrect Target for Events

UE - Gameplay - Blueprint - Oct 15, 2015

Duplicating a blueprint that has a node hooked up to BeginPlay causes the BeginPlay in the duplicate blueprint to target the original blueprint. This does not appear to affect functionality. Occur ...

Set World Location Not Working on Skeletal Meshes with Simulate Physics Enabled

UE - Gameplay - Mar 3, 2016

When a skeletal mesh is set to simulate physics, using the Set World Location node to set the world location of the mesh does not seem to be working. Turning simulate physics off causes the mesh to ...

The option to add a component to an Actor Blueprint from inside a child Actor Component BP isn't available

UE - Gameplay - Dec 16, 2015

The option to add a component to an Actor Blueprint from inside a child Actor Component BP isn't available. Using Get Owner inside the Actor Component's Event Graph and then casting to the owning Ac ...

Owner No See option does not correctly apply to widgets using screen space

UE - Editor - UI Systems - Aug 17, 2017

When using the Owner No See option with Widgets, if the widget is set to display on the screen rather than the world, then the option does not affect the widget as intended. Other forms of changing ...

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 ...

Setting multiple identical actors to replicate movement will crash on PIE with multiple players

UE - Networking - Jan 28, 2015

If ten or more of the same actor in a level have the "replicate movement" checkbox set to true, the editor will crash on PIE if the number of players is set to 2 (or with 1/2/3 players if dedicated ...

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 ...

Non-Power of 2 images are not rendering on iOS devices

UE - Platform - Mobile - Feb 2, 2015

If you create a UMG with an image in the Umg that is not a power of 2, The image will not appear on an iOS device. Tested this on a Android device (Nexus 5 with ETC1 and ATC. PVRTC will not allow t ...

Skybox Textures Have a Seam When Using a Cube With Inverted Normals

UE - Graphics Features - Feb 14, 2020

Skybox textures can have a seam when using an inverted cube for a sky. Attached is an example 4.24.2 project. Note: One of the attached seam screenshots is hard to see unless you expand it. Found ...

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 ...