Body elements of a Paper Terrain Spline Data Assets do not have collision

UE - Gameplay - Paper2D - Mar 8, 2015

Body elements of a Paper Terrain Spline Data Assets do not have collision. When the second handle is dragged to lengthen the spline, only the Start and End Caps show collision. The end cap will show ...

Change GetDisplayName to same behavior in all builds.

UE - Gameplay - Apr 9, 2015

Edit MattK: The display name is different when running PIE through the editor. This sort of inconsistency seems wrong. We should probably not ever be using the display name. Spaces are removed fro ...

Morph Targets flicker Randomly in Slave Mesh

OLD - Anim - Oct 1, 2015

When a mesh is slave to a master mesh, its morph targets will flicker when Played in Editor. This does not occure with the same assets in 4.8. This has been reported by at least two different use ...

[CrashReport] UE4Editor_Kismet!SBlueprintEditorSelectedDebugObjectWidget::GenerateDebugObjectNames() [sblueprinteditorselecteddebugobjectwidget.cpp:454]

UE - Gameplay - Blueprint - Dec 9, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Access violation - code c0000005 (first/second chance not available) Source C ...

Runing PlayInEditor with NetMode PlayAsClient and a LevelSequence that AutoPlays in the level and is also opened in Sequencer leads to a Fatal world leak crash on 5.5 and up

UE - Anim - Sequencer - May 28, 2025

Runing PlayInEditor with NetMode PlayAsClient, a LevelSequence that AutoPlays in the level, contains a Spawnable BP_ThirdPersonCharacter with an animation, and is also opened in Sequencer, leads to ...

Copying a Folder in Sequencer and later Pasting it inside Sequencer is resulting in loss of Components

UE - Anim - Sequencer - Aug 8, 2025

Copying a Folder in Sequencer and later Pasting it inside Sequencer is resulting in loss of Components. The pasted folder is not respecting the structure that was copied. This issue only happens on ...

Ensure triggered in FBoundsCacheElement::GetValue when adding ISM instances in Construction Script

UE - AI - Oct 8, 2025

An ensure is triggered in FBoundsCacheElement::GetValue when adding instances to an InstancedStaticMeshComponent inside a Blueprint’s Construction Script. This occurs when the ISM component is navig ...

TargetArray nodes are reported as invalid if played in Standalone mode but not in PIE

UE - Gameplay - Blueprint - Feb 20, 2015

TargetArray nodes are reported as invalid if played in Standalone mode and the blueprints they are contained in are not rendered. Playing in PIE however works correctly and all blueprints are rende ...

Enabling bUpdateComponentTransformToRootBone in a GeometryCollectionComponent causes broken particles to appear in the wrong location

UE - Simulation - Visual - Jun 22, 2025

Enabling bUpdateComponentTransformToRootBone in a GeometryCollectionComponent causes broken particles to appear in the wrong location. When that flag is true, the moment the GeometryCollection (GC) ...

Steam Overlay does not show in Win64 Shipping builds when run outside of Steam

UE - Networking - Nov 11, 2015

Steam Overlay does not show in Win64 Shipping builds when run outside of Steam. The Steam client can be running, but unless the .exe is opened through Steam itself, the Overlay will not appear. Note ...