Crash when adding a streaming level to the world through Python

UE - World Creation - Worldbuilding Tools - World Composition - Aug 3, 2021

When using the Python plugin to add an existing level as a streaming level, the editor crashes. It seems that this happens regardless of what level is added or what the contents of that level are. A ...

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 ...

Profile GPU Command Crashes Standalone Game on Mac

UE - Platform - Apple - Mar 21, 2017

[Link Removed] "ProfileGPU" Command Crashes Standalone Game on Mac but not on a Windows PC. Regression: No ...

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 ...

Hot reload causes AnimBlueprint to lose functionality and crash

OLD - Anim - Mar 31, 2015

Casting to a character class inside of AnimBlueprint after a hot reload caused editor to crash Crash Reporter: [Link Removed] Additionally, Casts fail, breaking AnimBlueprint after a hot reload ...

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. ...

Editor crashes during launch to Galaxy Note 4

UE - Platform - Mobile - Sep 29, 2016

Editor seems to crash upon launching to a Galaxy Note 4 with the following error: [2016.09.28-15.52.40:824][-7215064]Assertion failed: Assertion failed: [Link Removed] [Line: 1147] May be relate ...

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 ...