Crash in the Blueprint Debugger.

UE - Gameplay - Blueprint - Nov 21, 2017

After creating a few different Blueprints in the editor and adding a breakpoint to a Function, a crash ensues when using Step In to debug the Blueprint. ...

OpenGL: Nvidia: Crash when using foliage tool

UE - Platform - Linux - May 7, 2015

As reported by user, using foliage tool in a first person project eventually crashes it. "Currently, any attempt to render objects created with the foliage tool crashes the UE4 editor on my machine ...

Converted 4.7.2 project crashes on open after successful recompile

UE - Gameplay - Blueprint - Mar 13, 2015

User's Project is crashing since converting to 4.7.2. I have attached the project itself below, but after conversations with the user and seeing pieces of the project, this issue may be related to ...

Crash when moving landscape that contains landscape spline to sub-level

UE - LD & Modeling - Terrain - Landscape - Aug 4, 2017

Crash when moving landscape that contains a landscape spline to another sub-level. User Description: The Editor crashes on copy and pasting a landscape spline over to another Level. Always rememb ...

Crash when attempting to change the parent of a material instance constant through editor scripting

UE - Rendering Architecture - Materials - Apr 9, 2025

The built-in class "UMaterialEditingLibrary" provides various editor scripting functions related to creating and editing materials and material instances. One of these functions, UMaterialEditingLib ...

Metal crash after painting 300 Foliage meshes onto a surface

UE - Graphics Features - Oct 4, 2017

Encountered a Metal crash when painting Foliage on Mac. I'm unable to reproduce anything similar on Windows. This crash can occur if the user drags a Static Mesh into the Foliage Panel or uses an e ...

Crash when FVolumetricRenderTargetViewStateData::Mode is not properly initialized

UE - Graphics Features - Jan 15, 2025

A licensee has reported that occasionally a race condition triggers a crash during the initialization of FVolumetricRenderTargetViewStateData. If FVolumetricRenderTargetViewStateData::Mode is not pr ...

[CrashReport] Deleting pins on Switch on Gameplay Tag Container node can cause a crash

UE - Gameplay - Blueprint Editor - Mar 15, 2017

When adding/removing pins on a Switch on Gameplay Tag Container node, it can cause a crash. There are multiple ways to get this to happen when deleting pins, the order given in the reproduction step ...

Application crashes when blueprint contains a copied timeline

UE - Gameplay - Blueprint - Oct 15, 2015

Copied timeline nodes triggers an Android crash and a black screen on the iOS devices. ...

Crash when viewing Lightmap Density mode and with Vert

UE - Graphics Features - Oct 15, 2015

If the option in Project Settings for Accurate Velocities from Vertex Deformation is enabled and then using the View Mode for Lightmap Density you will get a hard crash. ...