Crash can occur in the Ansel plugin when setting Use Client Side Camera Updates to false in Player Camera Manager

UE - Graphics Features - Apr 18, 2017

Setting the `bUseClientSideCameraUpdates` property in a `PlayerCameraManager` class to false can result in a crash in the Ansel plugin because `GEngine->GameViewport` may be NULL. Another user has ...

Duplicating a blackboard node within a behavior tree will cause a crash

UE - AI - Jul 16, 2015

When using the shortcut Crtl+W to copy a blackboard node within a behavior tree the editor will crash ...

Client crashes when executing seamless travel with an active particle system in the level that was spawned at runtime

UE - Niagara - Apr 16, 2019

Clients crash when being part of a Seamless Travel if there was an active particle system in the level that was spawned at runtime. If the travel is not seamless, the particle system is placed in th ...

Crash when saving a World Partition map that contains a PCG Volume

UE - World Creation - Procedural Tools - Aug 15, 2023

This is a regression. Tested in //UE5/Release-5.2 CL26001984 The editor crashes with an assertion after saving a World Partition enabled level with a landscape that contains a PCG Volume. ...

Crash when spawning an actor with an AtmosphericFogComponent in a packaged build

UE - Graphics Features - Aug 25, 2020

Spawning an actor that contains an AtmosphericFogComponent results in a crash in a packaged build. It doesn't occur in PIE, or StandAlone.  ...

Editor crashed when opening TM-MeshPaint in QAGame

UE - Graphics Features - Jan 20, 2017

While reviewing [Link Removed] test case, I hit the following crash opening the TM-MeshPaint level. On first attempt shaders were compiling, on attemps after, editor crashes much faster. ...

PhysX crash when SetMaterial is called

UE - Simulation - Physics - Mar 14, 2016

When provided sample project is run in PIE, crash occurs after call to SetMaterial() is made in code. Downloadable Project: [Link Removed] CrashReporter: [Link Removed] ...

Functional Test framework crashes adding delegate instance when multiplayer PIE enabled

UE - Gameplay - Jun 18, 2015

The Functional Test framework crashes when adding a delegate instance if multiplayer PIE is enabled. The crash occurs at the check code in the block below from ..\Engine\Source\Runtime\Core\Public\D ...

Crash when opening a sequencer that has an actor with spring controller registered and play in editor

UE - Anim - Runtime - Mar 4, 2021

During end play in editor, there is an access violation referencing WorldSettings from SpringBone.  In the attached project, the character registered in the sequencer uses the "SpringController" no ...

Crash when launching dx12 for the first time with Rect Lights

UE - Rendering Architecture - RHI - Mar 20, 2019

Users on the forums are hitting a crash on their initial launch of the engine into dx12. There is currently a workaround to load into the project with dx11 first, compile shaders, then youre fine to ...