Assert cooking QAGame QA-Blueprints map with Nativization enabled

UE - Gameplay - Blueprint Runtime - Apr 18, 2017

When cooking QAGame (QA-Blueprints map) an assert is triggered during the cook step. So far I have reproduced this for: Win64 and PS4. ...

Niagara and Groom causes exception crash on Launch when using

UE - Simulation - Physics - Mar 2, 2020

Trying a Launch after every step shows that the problem occurs as soon as the GroomAssetSystem is added to Niagara. If the GroomAssetSystem is removed, the game launches fine (but the hair doesn't m ...

Scene with texture collection crashes when dumping a full memreport

UE - Rendering Architecture - RHI - May 28, 2025

A licensee has reported that generating a full memreport of a packaged project which uses a texture collection leads to a crash. ...

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. ...

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 ...

Crash when attempting to generate an event in an Event Handler

UE - Niagara - May 27, 2020

Crash when attempting to generate an event in an Event Handler ...

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 ...

Crash when drag selecting a level in an orthographic view with a control rig asset

UE - Anim - Rigging - Control Rig - Feb 11, 2021

When adding a Control Rig asset to a level, choosing one of the orthographic views, and then drag selecting any part of the level, the editor crashes. This does not occur if you drag select in the p ...

Crash when Animation Blueprint references Enhanced Input value

UE - Gameplay - Input - Jan 12, 2023

Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...