Crash when changing multiple Landscape Blend Layer nodes from Weight blend to Height blend

UE - LD & Modeling - Terrain - Landscape - Mar 13, 2017

A crash occurs when setting the Blend Type for multiple Landscape Layer Blend nodes from Weight Blend to Height Blend. ...

Crash when opening the static mesh editor

Tools - Jan 26, 2021

We have been unable to get an internal repro so far, however we have had quite a few reports from the community reporting this issue. One user also stated this happens when migrating a project over ...

Packaged ThirdPerson template with "start in vr" enabled packaged and launched with "-nohmd" crashes

UE - Platform - XR - Mar 31, 2021

The callstack is not XR-specific, it's just the engine trying to secure the audio device on startup, windows failing to return one, and the app not being able to continue safely. The crash does not ...

Editor Utility Nested in Expandable Area Causes Editor Crash

UE - Editor - UI Systems - Dec 15, 2022

A 'user-created' widget in the body of an Expandable Area of an Editor Utility Widget causes a crash, after selecting 'Run Editor Utility Widget'. ...

Crash upon opening packaged game when Event Driven Loader is disabled

UE - Foundation - Core - Apr 26, 2019

Packaged games are unable to open when Event Driven Loader is disabled. The error message given is: Assertion failed: !Linker->GetSerializeContext() [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\C ...

Ensure when setting Bone Axis to None in Spline IK

UE - Anim - Rigging - Dec 13, 2016

An ensure occurs when setting Bone Axis to None on a Spline IK node. This doesn't occur with any of the other options for Bone Axis. ...

[CrashReport] UE4Editor_DetailCustomizations!FBodyInstanceCustomization::MarkAllBodiesDefaultCollision() [bodyinstancecustomization.cpp:829]

UE - Simulation - Physics - Aug 29, 2017

This is an infrequent crash occurring in the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 816 void FBodyInstanceCustomiza ...

Clear Coat looks incorrect in the Preview when Energy Conservation on Material is enabled for non Substrate rendering

UE - Rendering Architecture - Materials - Apr 11, 2024

Enabling Energy Conservation on Material makes Clear Coat Material look weird in Preview. It looks fine in the Level Editor, but not in any "Preview" type viewport (Material Editor, Asset Thumbnails ...

Importing fbx onto an empty camera animation sequence can crash the editor

UE - Anim - Sequencer - Jan 27, 2022

Importing an FBX into an empty camera animation sequence crashes the editor. The import seems to fail when trying to add a camera cut track. Exporting an fbx from a camera animation sequence, deleti ...

Ensure clicking on the floor mesh in Anim Blueprint preview

OLD - Anim - Jan 18, 2017

REGRESSION No, occurs in 4.14.3 Ensure occurs if the user clicks on the floor mesh in the Animation Blueprint viewport. ...