Editor crash when adding mesh renderer elements in Niagara

UE - Niagara - Jul 8, 2025

When adding multiple meshes to a Niagara Mesh Renderer Module, a check() will be triggered due to a mismatch in the number of Widgets and the number of Tooltip Widgets. ...

Crash when using StaticDuplicateObject with mismathced Source and Destination class types

UE - Foundation - Jun 19, 2025

Starting in Unreal Engine 5.4, StaticDuplicateObject internally switched to using Unversioned Property Serialization (UPS) for performance reasons. However, UPS assumes the source and destination ob ...

Importing multiple SpeedTree assets that use the same texture will not assign correctly

UE - Graphics Features - Sep 25, 2015

When importing multiple SpeedTree assets that use the same material will cause one to import blank (black) materials and assigned. This happens when importing into the same folder, however, if impor ...

Opening the editor with -opengl4 causes the viewport camera to go black

UE - Platform - Linux - Apr 14, 2015

If the -opengl4 command is used while launching the editor it will cause the viewport to go black if something in the level is selected or while using RMB to look around the level. ...

Enumeration selections within structs do not properly populate within data tables

Tools - Dec 1, 2015

The first selection of Enums within a struct array do not properly pouplate the table within a datatable (see attached image datatableEnum1). Any other selection populates the datatable, however it ...

PreviousDesiredLoc and PreviousArmOrigin do not update with World Origin Shifting

UE - Gameplay - Sep 14, 2015

Currently, PreviousDesiredLoc and PreviousArmOrigin are not updated when the world origin is updated, which causes camera lag to snap the camera to its new position instead of smoothly transitioning ...

Access None errors creating log spam in user's project when editing BP

UE - Gameplay - Blueprint - Mar 16, 2015

Access None errors creating log spam in user's project when he is editing the BP. This causes a gradual, but significant, increase in the Editor's memory usage. It appears to occur with a a refere ...

Crash after converting to 4.7.0 from 4.6.1

UE - Gameplay - Blueprint - Feb 26, 2015

User is crashing when opening project after converting to 4.7. [Link Removed] [Link Removed] LOG IS ATTACHED 4.6 project with updated plugin: [Link Removed] ...

Tutorials Window appears after selecting "Don't Remind Me Again"

Docs - Feb 26, 2015

Tutorials window appears after selecting "Don't remind me again" when you right click the icon. See forum URL ...

Can add pins to nodes during PIE

UE - Gameplay - Blueprint - Feb 5, 2015

Pins can be added to blueprint nodes during read only modes, such as PIE. ...