InstancedFoliageActor experiences issues with floating point precision when far away from World Origin and is not affected by Origin Rebasing

UE - World Creation - Worldbuilding Tools - World Composition - Jul 17, 2020

Foliage generated by Landscape Grass Type do not encounter this issue. Only hand painted foliage with foliage tool is not affected by rebased origin. Foliage vibrates when it is located in long dist ...

Widgets are removed from viewport on server travel

UE - Editor - UI Systems - UMG - Aug 3, 2023

The GameViewportSubsystem removes all widgets from the viewport in UGameViewportSubsystem::HandleRemoveWorld which is bound to the FWorldDelegates::OnWorldBeginTearDown and FWorldDelegates::OnPreWor ...

Actor appears hidden in editor viewport until moved to different sublevel

UE - Gameplay - Mar 9, 2016

User's blueprints disappear from level during editing with no warnings, errors, messages, or additional information. They return to visible if they are moved into a new sublevel and appear during PI ...

Tilemaps Normals are Flipped upon Opening Editor with Tilemaps in Level

UE - Gameplay - Paper2D - Jul 27, 2016

A licensee has reported that the normals for their tilemaps upon initial load of the editor are flipped. This is also true when they launch their packaged project. All the normals of their tilemaps ...

Undoing alteration of a local variable's default value does not actually undo the alteration

UE - Gameplay - Blueprint - Jun 7, 2016

Undoing the alteration of a local variable's default value causes the Undo toast to appear but the alteration is not actually undone. Regression: No ...

Sequencer capture movie rendering is issue.

UE - Anim - Sequencer - Jul 13, 2017

This problem always occured in 4.16.0, 4.16.2. It does not occur 4.15.3. ・Reproduction Project Linkhttps://udn.unrealengine.com/storage/attachments/299111-captureerror-416.zip ...

Crash when Clicking on a Linear Color Default Value in an interface

UE - Gameplay - Blueprint - Jul 19, 2017

When selecting a default color for a linear color input for an interface. A crash occurs when trying to bring up the color picker. ...

[CrashReport] UE4Editor_Engine!UMaterialExpression::GetOutputType() [materialexpressions.cpp:859]

UE - Rendering Architecture - Materials - Nov 21, 2017

This is an infrequent crash in the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 849 uint32 UMaterialExpression::GetOutputT ...

Merged Instanced Static Meshes (Merge Actors tool) not visible when duplicated

UE - World Creation - Worldbuilding Tools - HLOD - Sep 19, 2018

Instanced Static Mesh Actors created with (new in 4.20) ISM Merge tool do not immediately appear when duplicated. Confirmed in 4.21 Main @ CL 4374913 ...