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 ...

Changing the Curve Asset in a Material Instance That Uses a Material Layer Crashes the Editor

UE - Graphics Features - Apr 22, 2019

Changing the Curve Asset in a Material Instance That Uses a Material Layer Crashes the Editor. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, 4.23 CL# 5974510 ...

Engine Crashes When Trying To Reimport Skeletal Mesh For One That Has No Clothing Data

UE - Simulation - Physics - Character - Jan 17, 2020

The engine crashes when trying to reimport a skeletal mesh that has no clothing data. This seems related to https://jira.it.epicgames.net/browse/UE-86948. Found in 4.24.1 CL#10757647 Reproduced in ...

Blueprint macro in a level blueprint causes memory leak

UE - Gameplay - Blueprint - Oct 15, 2019

The level blueprint has a macro that references a level. FBlueprintNodeTemplateCache keeps holding this cashe at transition level. Unable to find source-code formatter for language: text. Available ...

Editor crashes when attempting to open the Window menu after recompiling a Standalone Editor Window plugin

UE - Editor - UI Systems - Slate - Nov 26, 2018

Generated from CrashReporter Attempting to open the Window menu in the Editor after having used the Modules window to recompile a Standalone Editor Window plugin will result in the Engine crashing. ...

Crash copying Geometry Cache Track in Sequencer

UE - Anim - Sequencer - Aug 6, 2020

Geometry cache section  will crash in PostLoad when track is copied. See UDN for alternative repro steps and more info on attached repro project. ...