Crash(Assert) CurrentGWorld != PlayWorld || bIsSimulatingInEditor

UE - Gameplay - Feb 25, 2019

Crash when attempting to return to Main Menu when playing Shootergame in a New Editor Window. Unable to upgrade+test Shootergame in 4.22+ due to deprecation of Possess() and other compile errors. ...

Crash debugging blueprints in a networked game session

Tools - Oct 14, 2016

Crash occurs when debugging blueprints when in a networked editor session. ...

Crash when opening TM-ShaderModels with -onethread

UE - Graphics Features - Jan 20, 2017

An assert fails when opening the TM-ShaderModels map in QAGame with the -onethread argument. The crash does not occur on any other maps tested. Two other ensure occur before the assert, those issues ...

Crash when building lighting with a Basic shape in the level

UE - Graphics Features - Lumen - Oct 25, 2019

Crash occurs when building the lighting with any Basic shape in the level. This crash occurs with Niagara plugin both enabled and disabled. This issue does not occur in 4.23 Issue only occurs on M ...

Using the "Convert Selected Components to Blueprint Class" feature on two blueprints will cause a crash

UE - Gameplay - Blueprint - Aug 12, 2015

When trying to make a prefab (using the Convert Selected Components to Blueprint Class method )out of existing blueprints the editor will crash. ...

Intermittent Crash in Pose Search during Cook

UE - Anim - Gameplay - Jan 27, 2025

User reports that they've been running into an intermittent crash in Pose Search during Cook. Pose Search attempts to index data outside the bounds of an array. Based on the logs, each asset seems t ...

The engine crashes when adding a new brush at newly created level by a specific way.

UE - LD & Modeling - Modeling Tools - Mesh Editing - Jun 17, 2019

issuesFBSPOps::csgAddOperation returns null if BuilderBrush has no valid polys.The creating level on content browser never calls "UEditorEngine::InitBuilderBrush(NewWorld);". But "New level" button o ...

Crash when AnimBlueprint and Bleuprint Interface has Same Name Function

OLD - Anim - Nov 12, 2019

When AnimBP and Blueprint Interface was added to the AnimBP has same name function, compiling AnimBP occur crash. ...

Power of two non square Virtual Texture causes crash if you resize it or change it in a Material Instance

UE - Graphics Features - Oct 7, 2020

Power of two non square texture make UE4 crash in Material Instance and in engine resize when it's set in VT ...

Crash when renaming AnimGraph function in AnimBP

OLD - Anim - Apr 17, 2015

When renaming the AnimGraph in an Animation Blueprint, the editor crashes after you hit enter. [Link Removed] [Link Removed] Occurs in: 4.7.5 Release CL:2503383 4.8 Main CL:2513846 ...