Crash when breaking Level Instance within Data Layer Asset

UE - World Creation - Worldbuilding Tools - World Partition - Feb 2, 2023

A crash occurs when breaking a level instance contained in a data layer.  This does not occur in 5.0.3, however the behaviors of Data Layers are different in 5.1 where the Data Layer asset is added ...

Crash when generating proxy mesh

Tools - Jul 12, 2019

Generating a proxy mesh with imported models and the simplify mesh flag set to true causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7288428), 4.24 (CL ...

Deleting a material layer from a stack, re-linking the layers, then deleting that layer again crashes the editor

UE - Graphics Features - Feb 5, 2021

The important step here is to unlink the middle layer after first relinking everything. ...

Take Recorder crashes if actor with animation despawns during recording

UE - Anim - Sequencer - Mar 8, 2021

Skeletal animations are finalized at the end of recording, and expect the actor to still be around, but actors can despawn during recording leading to a crash. ...

Crash when editing gameplay tag query in a structure

UE - Gameplay - Blueprint - Feb 20, 2017

When I try to edit Gameplay tag query in a blueprint structure the editor crashes. Regression: No. This issue affects versions: 4.15, 4.14.3, 4.13.2 (Binary Versions) ...

Engine crashes when trying to remove unused bones from skeleton

UE - Anim - Runtime - Mar 10, 2021

Engine crashes when i try to remove unused bones. I have lot of things going on in those characters, they all share same skeleton. There are anim blueprints with control rig and pose drivers, there ...

Changing reflection capture resolution after setting preview rendering level to Android ES3.1 crashes the editor

UE - Graphics Features - Nov 20, 2019

Applying a new reflection capture resolution after changing Preview Rendering Level to Android ES3.1 results in crash. Tested in: 4.24 P3 CL#10283392    4.25CL#10303496 ...

[MetaSounds] - Changing an Input to Modulation Parameter crashes editor due to module load order

UE - Audio - MetaSounds - May 27, 2022

Setting an Input type on Modulation Parameter crashes the editor with:Assertion failed: Pair != nullptr [File:E:\SMoyls_UE5_Release-5.0\Engine\Source\Runtime\Core\Public\Containers\Map.h] [Line: 643 ...

Action Rpg Sample Creating a new GameplayCue handler crashes the editor in 4.24

UE - Gameplay - Dec 17, 2019

In Action Rpg sample, creating a new Blueprint of type GameplayCueNotifyActor or GameplayCueNotifyStatic, results in an Engine crash. The call stack leads to a PrintF Slate warning message that woul ...

Adding a New Blackboard Key While Searching for a Blackboard Key Causes the Editor to Crash

UE - AI - Nov 12, 2015

When you use the search bar located under the New Key button in a Blackboard asset, if you attempt to press New Key while you have text in the search field, the editor will crash after you select th ...