Handle fracturing a destructible mesh when the source mesh has been deleted without a crash.

UE - Simulation - Physics - Destruction - Jul 13, 2015

When attempting to fracture a destructible where the source static mesh has been deleted we get a crash in APEX. APEX can't seem to find any root leaf nodes to begin fracturing upon. This does not ...

Editing an instanced variable that is nested in two other instanced variables causes a crash

UE - Gameplay - Blueprint - Jul 2, 2015

If a user edits a instanced variable which is nested inside two other instanced variables in blueprint editor, a crash will occur ...

Constant Crashes on OS X 10.10.1

UE - Platform - Apple - Dec 15, 2014

User (Omri) on Mac running OS X 10.10.1. on MacBook Pro (17-inch, Early 2009 Experiencing Crash. Cannot reproduce. Crash Reporter: N/A Callstack: MachineId:1E07B9CE2F4554A7C3F421A9DD97AFB5 EpicAc ...

Crash when updating instanced subobjects in a USTRUCT

UE - Gameplay - Blueprint - Jul 5, 2017

Attempting to edit array of instanced subobjects causes the editor to crash. ...

Sub Animation Blueprint causes crash when compiling character BP

OLD - Anim - Dec 9, 2016

Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 931 OutputCurveMap(AnimationCurves[(uint8)EAnimCurveType::AttributeCurve], Canvas, Displa ...

Editor crashes when keying a frame to an Animation from Pose with Appended Frames

UE - Anim - Runtime - May 17, 2022

This is a regression. Tested in //UE4/Release-4.27 CL18319896 Editor crashes when keying a frame to an Animation from Pose with Appended Frames. ...

Upgrading Project After Disabling Light PropagationVolume Plugin Causes Crash

UE - Foundation - Cpp Tools - Plugin System - Apr 1, 2016

Attempting to upgrade a project from 4.10 to 4.11, or 4.11 to 4.12 with the LightPropagationVolume plugin disabled causes it to crash. Found in converting a 4.10 project to 4.11, and reproduced con ...

[CrashReport] Crash can occur when applying Apex cloth to a Material slot

UE - Simulation - Physics - Character - Mar 21, 2017

No known crash with users I had been in contact with on the latest PhysX plugin for 3dxMax or Maya. I've had a few posts dealing with using Apex and assigning cloth assets with no crashing so I feel ...

Crash when Undo after deleting a Material Layer of a Material Instance.

UE - Rendering Architecture - Materials - Apr 2, 2025

In Unreal Engine version 5.5.4, the Editor crashes when performing Undo after deleting a Material Layer of a Material Instance ...

tvOS crash on startup with Shared Material Shader Code enabled

UE - Platform - Mobile - Jul 9, 2019

Enabling Shared Material Shader Code will cause a crash on tvOS From user: "We originally enabled Share Material Shader Code long before trying a tvOS build, making this crash tricky to debug. W ...