Crash on applying animation modifier for some assets

OLD - Anim - Oct 29, 2019

When removing curves on some assets, a crash can occur. This seems to be due to const FSmartNameMapping* CurveMapping being null and dereferenced within UAnimationBlueprintLibrary::RetrieveContainer ...

Ensure occurs when turning on Constraints in Advanced Show Flags

UE - Graphics Features - Jan 11, 2017

An ensure occurs when Constraints are toggled on in the show options. Note After the ensure, you can toggle Constraints off and on freely This is a Regression from 4.14.3 ...

Get VR Focus State will cause a crash in standalone if an HMD device is in use

UE - Platform - XR - Jul 27, 2016

Get VR Focus State will cause a crash in standalone if an HMD device is in use ...

Assertion thrown while deleting a Curve from a Control Rig asset - DetailsViewWrapperObject.cpp: 231

UE - Anim - Rigging - Control Rig - Apr 1, 2022

Assertion thrown while deleting a Curve from a Control Rig asset.  ...

GAS: Ability that destroys owning actor on activate causes crashes due to ABILITYLIST_SCOPE_LOCK

UE - Gameplay - Gameplay Ability System - Oct 31, 2023

A GameplayAbility that destroys its owning actor inside ActivateAbility() causes a crash, because actor destruction will modify the ability list but ActivateAbility() is called within an ABILITYLIST ...

Editor crashes while sculpting landscape heavily covered in foliage

UE - LD & Modeling - Terrain - Landscape - Mar 30, 2016

Sculpting a landscape densely covered in foliage crashes editor after freezing. Frequency: 2/2 crashreporter: N/A Additional CrashReporter - [Link Removed] ...

Editor Crash when blueprint Self reference is passed by reference

UE - Gameplay - Blueprint - Feb 7, 2017

When a custom event has an input whose type is a reference to an object (Actor-Reference, Player Controller - Reference, etc) and is set to pass-by-reference, passing a reference to the "self" bluep ...

gltf 2.0 Blender Polly Import crashes

OLD - Enterprise - Aug 29, 2019

Trying to import the Polly sample model for gltf 2.0 crashes Editor. User know that the Plugin is experimental but as the Polly Model is used for Blender gltf development, it should work. The crash ...

Crash from 2D Ledge with Custom event

UE - Gameplay - Blueprint - Feb 21, 2017

Crash from 2D Ledge with Custom event this occurs when the character overlaps with a material that is referenced via a custom event ...

Adding Angular Impulse on Begin Play causes a Crash

UE - Simulation - Physics - Jun 29, 2016

Calling Add Angular Impulse on BeginPlay causes the editor to crash. Workaround: Adding a short (.01s) delay after BeginPlay prevents the crash. Regression: No, crash occurs in 4.11.2 as well. ...