Engine Crashes When SubAnimInstance is set up and Master Sequence is Set to Spawnable

OLD - Anim - Oct 20, 2017

Engine crashes when CharacterBP is dragged into the Shots track and Spawnable is checked and unchecked when character animation Blueprint has a SubAnimInstance set up. ...

Having an "IsShiftDown" node with a branch in the On Key up event will cause a crash

UE - Gameplay - Blueprint - Jun 16, 2015

If a user uses an IsShiftDown node inside of an OnKeyUp override it will cause the editor to crash. ...

Crash when adding a pawn that has a SetSenseEnabled node set to true on Begin Play and then playing the game

UE - AI - Apr 20, 2021

When adding the SetSenseEnabled node to a Pawn and controlling another pawn that has an AIPerceptionStiumuliSource, the editor crashes. I tested using other senses such as Hearing and the crash occu ...

Editor Crashes on Opening After Deriving C++ Class from Another Class

UE - Foundation - Cpp Tools - Hot Reload - Sep 13, 2017

After deriving a C++ class from another class and then closing the editor, the project will crash when reopened. This crash will continue until the project files are regenerated and the project is r ...

Editor crashes when creating a new level while the current level contains an Actor with an Actor Sequence Component

UE - Anim - Sequencer - Jan 5, 2022

This is not a regression. Tested in: //UE5/Main CL18218925 Binary - Crashed //UE5/Release-5.0 CL16682836 Binary - Crashed //UE4/Release-4.27 CL Binary - Crashed Having a level open that contains a ...

Crash in GameplayTag Editor Widget when editing array of tags on a component

UE - Gameplay - May 17, 2022

Editing an array of gameplay tags on a component belonging to an actor instance can lead to a crash. There are inconsistencies with how the Gameplay Tag Editor widget behaves:Array of gameplay tags ...

Crash dragging Sound Wave onto Output node in Newly Created Empty Sound Cue

UE - Audio - Aug 22, 2016

A licensee has reported a crash when dragging a Sound Wave onto the Output node within the Sound Cue editor. Regression? This crash does not occur on the 4.11.2 binary release CL-2946394 ...

Crash on startup with a Blueprint deriving from an abstract class with a SpriteComponent

Tools - Feb 7, 2018

Appears to be an issue with load order and the timing of when we populate the 'ShowSpriteCommands' and 'SpriteIDToIndexMap' containers, which we assert on if they're not the same size. The original ...

Crash on Mac on exit.

Media Framework - Aug 17, 2020

A licensee reported trouble with a crash on exit on Mac. They discovered that the file AvfMediaPlayer.cpp, on the function Open there is this piece of code:// Force the AV player to not be able to ...

Mac - Crash when opening editor on macOS 10.12

UE - Platform - Apple - Aug 8, 2016

Editor crashes during initialization, but only on macOS 10.12, not 10.11.6. Crash is due to a shader not compiling... Update: Crash was not occurring on Nvidia or Intel. This was strictly an AMD i ...