Crash in FVulkanLinuxPlatform

UE - Platform - Linux - Apr 17, 2019

Using the command in the repro steps on Linux will cause the Editor to crash and CrashReporter to pop up with a callstack. This behaves differently when tried on Windows with -vulkan. The project ...

Editor Crashes When Attempting to Create/Open a Blueprint While 'Show Friendly Variable Names' is False

UE - Gameplay - Oct 12, 2018

When the 'Show Friendly Variable Names' option is set to false in Editor preferences, attempting to create (once you press 'Enter' to accept the new Blueprint name) or open a Blueprint causes the ed ...

IOS GPU Hang Error (IOAF code 3) and Crash when rotating to Landscape

UE - Platform - Mobile - Oct 11, 2018

When users rotate to landscape in QAARApp the apple device will encounter a GPU Hang error and crash.Execution of the command buffer was aborted due to an error during execution. Caused GPU Hang Err ...

Editor crashes when a hot reload is performed on a project that contains a custom User Defined Struct code class

UE - Foundation - Core - Feb 20, 2017

Adding a custom User Defined Struct code class to a project causes the Editor to crash whenever a hot reload is performed on that project. Removing the custom User Defined Struct class allows hot re ...

EQS Generators named "NewBlueprint" cause errors and crash

UE - AI - Feb 11, 2015

Naming an EnvQueryGenerator_BlueprintBase derived BP "NewBlueprint" and deleting it causes new custom generators to not appear in the EQS. This can also lead to a crash when searching for the new ge ...

Crash upon using marquee selection in Anim Graph while debugging

UE - Gameplay - Blueprint - Apr 20, 2016

A user reported a crash that occurs only in Debug Editor, related to the Anim Graph of an Animation Blueprint. The issue involves marquee selecting multiple nodes inside of a State Machine transitio ...

Crash can occur when calling GetSkinnedVertexPosition on a skeletal mesh with a slightly different bone hierarchy than the skeletal mesh whose skeleton it is using

OLD - Anim - Apr 12, 2017

MDW: In progress (Dev-AnimPhys CL 3392820) When calling GetSkinnedVertexPosition on a skeletal mesh that uses the same skeleton as a different skeletal mesh with a slightly different bone hierarchy ...

.wav files with max concurrency count data outside proper range will crash editor when played

UE - Audio - Apr 12, 2016

Editor crashes if a set of sound files provided by a user is played. This occurs in any project that the asset is migrated to. Frequency: 5/5 NOTE If the asset is exported outside of the editor ...

Changing Area Light Settings In Blueprint Causes Crash

OLD - Enterprise - Aug 27, 2018

Changing area light settings in blueprint will Cause a crash. Found in 4.20 CL# 4302132 and 4.21 CL# 4307852 Unable to test in 4.19 due to provided project being in 4.20 ...

[CrashReport] Mac crash - FCocoaRunLoopSource::Process

UE - Platform - Apple - Sep 14, 2017

This is a somewhat common Mac crash that has occurred since at least 4.14 and into 4.17. Users have not provided any descriptions of their actions when the crash occurred. The callstack contains l ...