World Partition - Deleted actors can become unloaded prior to saving

UE - Engine Scaling - Streaming - World Partition - Apr 11, 2025

In world partition levels, deleted actors can become unexpectedly unloaded prior to saving, causing loss of work. Specifically, this issue occurs after the undo history has been cleared (either manu ...

Breakpoint on SetText node in WBP PreConstruct triggers editor hang on save

UE - Framework - Blueprint - Apr 17, 2024

A user reported that when calling SetText on a text widget in a widget blueprint's PreConstruct causes an editor hang when you put a breakpoint on SetText and attempt to save the asset. The issue i ...

Compiling blueprint with anim bp crashes editor in MathExpr exec

UE - Gameplay - Blueprint - Jan 30, 2016

Compiling a player character blueprint that is tied to an anim bp crashes the editor. Frequency: 2/2 Crashreporter: N/A ...

Pressing "+" element in landscape grass type asset crashes editor

UE - LD & Modeling - Terrain - Landscape - Jul 31, 2015

Creating a landscape grass type and then pressing the + to add an element crashes the editor. Frequency: 2/2 Crashreporter: not currently available ...

DestructibleMesh does not correctly effect vertex color of material.

UE - Simulation - Physics - Destruction - Oct 10, 2017

Destructible Mesh does not correctly affect vertex color. ...

Opening a data table based on a struct with a slate brush variable crashes the editor

UE - Editor - UI Systems - Slate - Feb 1, 2016

Attempting to open a data table based on a struct with a slate brush variable crashes the editor. Frequency: 2/2 CrashReporter: N/A ...

Bug in ULevel::FixupActorFolders.

There is a potential bug in ULevel::FixupActorFolders() in the FixDuplicateFolders section: Suppose you have a folder hierarchy that looks like this:A B(1)B(2) C(1)B(3) C(2) where the letters ...

Setting struct variable to CurveTableRowHandle crashes editor

Tools - Sep 9, 2015

Editor immediately crashes if a variable is set to type Curve Table Row Handle within a structure. Frequency: 2/2 Crashreporter: N/A ...

Editor crashes when setting return value pin to object variable in widget blueprint

UE - Gameplay - Blueprint - Apr 9, 2015

Editor crashes when attempting to set an object variable to a return value within widget blueprints. Frequency: 2/2 Crashreporter: [Link Removed] ...

MoveToActor doesn't update AI's path on goal actor's move

UE - AI - Mar 16, 2015

A number of issues with MoveToActor have been observed in 4.7.2, including: 1. Not updating path on goal actor's move 2. hitting obstacles after path updating ...