Changing the navigation for the root of a widget blueprint will cause a crash

UE - Editor - UI Systems - Sep 28, 2015

Changing the navigation of the root of the widget blueprint will cause the editor to crash ...

Cascade particle system crash when changing levels in a cooked game

UE - Niagara - Jan 6, 2021

Changing levels with an auto-released particle system will cause cooked builds to crash. This is a regression. This crash does not occur in 4.25 ...

Crash when calling SetVector2DParameter on a Niagara Parameter Collection

UE - Niagara - Mar 10, 2022

Crash when calling SetVector2DParameter on a Niagara Parameter Collection. The value for the SetVector2DParameter may or may not have to be changed in order for the crash to occur.  Assertion faile ...

Crash opening Soul City in 4.19

UE - LD & Modeling - Terrain - Landscape - Mar 15, 2018

This does not reproduce in 4.18.2 I spoke with Tim G. from the tools team and we tried a few things. 1stOpened LV_Soul_Slum in 4.18Exported the landscape height mapOpened a level in 4.19 and impor ...

Crash on start on KitKat

UE - Platform - Mobile - Jul 24, 2019

There is an unsupported call being made on KitKat causing a crash during startup. ...

Media Playback - PNG Image Sequence Crashes Editor

UE - Media Framework - Sep 14, 2023

The attached 105 frame PNG image sequence ( 1920x1080 w/alpha ) crashes the editor in UE 5.3 and 5.4 when played in the media player or in a MediaPlate.   The same image sequence does not crash the ...

Crash saving hidden landscape streaming level with offset

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

Landscape actors in a streaming level that has an offset applied and is hidden cause a crash when saving that level. The levels window refuses to save hidden levels, but other actions (inc. "Packag ...

Crash Occurs When Using the Hide Bone by Name Node

UE - Gameplay - Oct 18, 2016

The editor is crashing when attempting to hide a bone using the Hide Bone by Name node after using the Set Master Pose Component. ...

Vulkan is crashing on S7 Mali

UE - Platform - Mobile - Mar 10, 2017

Projects packaged for Android using Vulkan are crashing on S7 Mali devices. This is not happening in 4.14. ...

Crash on aborting main task of behavior tree's parallel node

UE - AI - Jun 12, 2015

It seems that we're getting an intermittent crash when killing a pawn that's executing a parallel node. It's crashing in BehaviourTree.cpp on this code: UpdateInstance.ParallelTasks[ParallelTaskId ...