Error when exporting large model to FBX binary

RC - Editor - Sep 16, 2024

It's happening when exported models have over 150 million triangles. Project: [Link Removed]  Note: Reported in the Elite Slack channel. ...

HLODs appear dark/near black when built for very large geometry with Virtual Textures enabled

UE - World Creation - Worldbuilding Tools - HLOD - Jan 27, 2025

Building HLODs for a very large landscape with Virtual Textures enabled results in the built HLODs being very dark for the most part. Building the same large landscape's HLODs with Virtual Textures ...

ensure(false) being fired in FGenericParticlePairMidPhase::FindOrCreateConstraint from key collision

UE - Simulation - Physics - Jan 27, 2025

ensure(false) being fired in FGenericParticlePairMidPhase::FindOrCreateConstraint from key collision. The licensee reports one of their users reported this issue and they were able to reproduce a fe ...

Automated tests DynamicSubobjectInstancing and NonNativeInstancedSubobjects (CoreUObject group) fail

UE - Framework - Dec 15, 2025

The DynamicSubobjectInstancing and NonNativeInstancedSubobjects automation tests fail. ...

LIVE: On MAC, Atmospheric Fog Preview Renders Incorrectly with Default Settings

UE - Platform - Apple - Nov 14, 2014

On a Mac, Following the tutorial located here: https://answers.unrealengine.com/questions/132223/macbook-pro-preview-rendering-issues.html When opening a new level, the atmospheric fog renders soli ...

Reset Emitter button in blueprint emitter component has no effect

UE - Gameplay - Blueprint - May 21, 2015

After setting a particle system component inside blueprint, clicking the "Reset Emitter" button in the details panel does not have any effect on the particle system. ...

Tooltip on Beam Source Name is incorrect

UE - Niagara - Oct 24, 2014

In the Beam's Source Module the tooltip for the Source Name is actually the tooltip for the Source Tangent Strength. ...

Crash using the 'Shot' Console Command after 'HighRes Shot 2'

Tools - Apr 7, 2015

A crash occurs when using the 'HighRes Shot 2' command, followed by the 'Shot' command. The user reporting the issue made a couple of notes to avoid the crash using these steps. He mentions the cra ...

Enumerators not setting data correctly in BP struct from .csv file

UE - Gameplay - Blueprint - Dec 24, 2014

Enum data is not correctly setting names in the data table when pulling data from a .csv file. ...

LIVE: Seams appear to split in world composition browser when using lower scalability settings.

UE - LD & Modeling - Terrain - Landscape - Nov 5, 2014

When using scalability settings with the world composition browser, seams in separate landscapes break on low settings, even if they lined up on high or epic settings. ...