Crash in FNiagaraGPUInstanceCountManager::AddDrawIndirect when Android Vulkan Mobile preview platform is enabled

UE - Niagara - Nov 14, 2024

In the Android Vulkan Mobile preview mode, when multiple GPU niagara systems are visible and the user moves the camera around the level it can cause a crash, potentially caused by a race condition o ...

Crash reimporting an FBX with LODs and Morph Targets, but leaving "Import LODs" disabled

UE - Editor - Content Pipeline - Import and Export - Jan 4, 2017

Error message: Assertion failed: ImportedResource->LODModels.IsValidIndex(LODIndex) [Link Removed] [Line: 282] Source Context: 270 * Constructor. 271 * Converts a skeletal mesh to ...

Editor crashes when right clicking a box collision after adding a converted static mesh in blueprint editor

UE - Gameplay - Blueprint - Sep 1, 2016

I created a cylinder with a subtractive cylinder inside of it. I also used a box BSP with a subtractive box inside of it and got the crash to repro. I tried with a sphere BSP twice and didn't get ...

Crash using VisualizeTexture command with texture id

UE - Graphics Features - Jul 1, 2019

Crash always occurs when executing Visualize Texture Command with Texture id. Looks like GVisualizeTexture.Mode doesn't affect correctly. Workaround: VisualizeTexturePresent.cpp FVisualizeText ...

Opening a project that contains an actor in viewport with a child actor component of type TextRenderActor crashes the editor

UE - Gameplay - Blueprint - Jan 12, 2016

If a blueprint with a child actor component of type TextRenderActor is added to a level and the editor is saved, closed, and reopened, the project will crash with the following assert: Assertion ...

Crash occurs while playing in editor with a State Tree using Bool Compare for a transition state to a child state.

UE - AI - StateTree - Apr 25, 2023

This is a regression. Tested in //UE5/Release-5.1 CL2390901 The crash occurred 3/5 times. Crash occurs while playing in editor with a State Tree using Bool Compare for a transition state to a child ...

Syncing a texture from source control while a material editor sampling it is open will crash the editor

Tools - Apr 13, 2018

Syncing to source control will cause a crash if a texture is synced that is being referenced by an open material editor, even if the texture hasn't been modified. A quick solution may be to close th ...

FNotifyNodeInterface crashes when referenced Notify is invalid

UE - Anim - Runtime - Mar 1, 2024

Currently FNotifyNodeInterface directly references notifies that live within the related anim sequence.  This can cause intermittent crashes when notifies are removed as the UI can still reference t ...

Using the Transform Tool to manipulate multiple Event Trigger keys at different times in the Sequencer Curve graph sometimes causes crash

UE - Anim - Sequencer - Dec 8, 2021

This is not a regression. I was able to reproduce the crash in 4.26. Using the transform tool to manipulate keys for an Event Trigger within the curve editor of sequencer sometimes causes it to cra ...