Interchange Runtime .glb Import Crash When Packaged

UE - Editor - Content Pipeline - glTF - Jun 10, 2025

The runtime import process works fine in editor, but fatal error when trying to do so with packaged build of project. My function that calls ImportAsset():bool UMeshLoader::RequestMeshLoad(FString ...

Crash during shader compilation when r.Shaders.Optimize=0

UE - Rendering Architecture - Shaders - Mar 11, 2024

The primary shader crashing is "FVisualizeLumenSceneCS" which I've put in the callstack section, but I think this is more likely a binding problem as I'm also see the following crash with cloud shad ...

A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast it immediately disappears by hitting the world limits

UE - Simulation - Core - Jan 20, 2025

A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast ...

Opening Persona causes editor to crash on Linux

UE - Platform - Linux - Nov 17, 2016

Attempting to open a skeletal mesh or animation in Persona causes the editor to crash. Regression: Yes Working: 4.13.2 - CL 3172292 Broken: 4.14.0 - CL 3195953 ...

LIVE: EDITOR: MATERIALS: CRASH: Setting the MipValueMode for MipLevel or MipBias to 4 or higher will crash the editor

UE - Graphics Features - Oct 14, 2014

BRANCH: MAIN CHANGELIST: 2322258 PLATFORM: Windows DESCRIPTION: When using a texture sample with the MipValueMode to MipLevel or MipBias with a value of 4 or higher will cause a crash. ...

Crash Occurs When Creating Pose Asset from an Animation in Persona

OLD - Anim - Feb 1, 2018

Engine crashes when creating a new pose asset in persona using the Create Asset option -Tested with walk, idle, and run anims -Didn't crash only once out of the several times tested with the Third ...

Crashes upon project start up

Tools - Feb 10, 2015

Crash Report: [Link Removed] After downloading latest revision, user is no longer able to open project due to constant crash. ...

SIGSEGV: invalid attempt to access memory at address 0x3

UE - Platform - Apple - Jan 30, 2015

Crash Report: [Link Removed] ...

Slow-rendering thumbnails can be queued up for real-time updates

UE - Editor - Content Pipeline - Content Browser - Sep 22, 2016

A licensee is seeing performance drops while using the editor due to a custom thumbnail renderer taking a while to generate thumbnails while Real-Time Thumbnail rendering is enabled, and has request ...

White Box Appear When Changing Screen Resolution on Standalone

White box appear when changing screen resolution on standalone. ...