Editing an array config property via ProjectSettings can end up editing other platform config properties.

UE - Foundation - Core - May 27, 2024

Platforms .ini config files can end up with incorrect data, due to how ProjectSettings manages the config data. On a Windows machine, if we open the ProjectSettings window, all the data is going to ...

[bink video]Auto importing bk2 creates an asset with wrong path

RAD - Bink Video - May 27, 2024

Here is a work around : #include "binkplugin_ue4.h" UObject* UBinkMediaPlayerFactory::FactoryCreateBinary( UClass* Class, UObject* InParent, FName Name, EObjectFlags Flags, UObject* Context, co ...

Nanite mesh shadows not updating when CSMCaching enabled

UE - Platform - Mobile - May 25, 2024

A Nanite primitive casting a CSM shadow on another Nanite primitive with "Cast Shadows" disabled, will have it's shadow disappear completely when r.Shadow.CSMCaching = 1. ...

Option "Update Animation in Editor" is reset for child skeletal meshes

UE - Anim - Runtime - May 24, 2024

When the boolean is set on a child skeletal mesh, looks like it gets reset   Specifically , at UActorComponent::ConsolidatedPostEditChange forces a reconstruction of the Blueprint, making the trans ...

LocalHeightFog placed in 5.3 projects are invalid and not appearing when the project is updated to 5.4

UE - Graphics Features - May 24, 2024

LocalHeightFog actors placed in levels for 5.3 projects are invalid and not appearing in levels after the project is upgraded to 5.4. This is likely due to LocalHeightFog being renamed to LocalFogVo ...

CPF_TextExportTransient and RF_TextExportTransient inconsistent behavior

UE - Gameplay - Blueprint - May 23, 2024

The TextExportTransient can be specified as a property flag and object flag. Behavior is inconsistent: there are many ways in which an object marked TextExportTransient can still be part of the text ...

Stale VSM pages after HLOD transition

UE - Graphics Features - Shadows - May 23, 2024

Virtual Shadow Maps do not invalidate pages when HLODs replace meshes. This can lead to inconsistencies between the geometry and the shadows, which can cause artifacts as pages are invalidated. ...

LogAssetRegistry Error produces a path error when referring to assets on a junction/hard link/soft link

UE - Foundation - Core - Cooker - May 23, 2024

IAssetRegistry::GetChecked().ScanPathsSynchronous() now eventually calls FPathExistence::LoadExistenceData and logs the errorFPathExistence failed to gather correct capitalization from disk for <p ...

Baking lighting on Nanite landscape crashes the editor

UE - Graphics Features - May 23, 2024

When static lighting is baked using CPU lightmass for a nanite-enabled landscape it causes an editor crash with this assert: ...\Lightmass.cpp] [Line: 546] Attempting to add the same material twice ...

NavMesh debug material color is changed by lighting with high lux values.

UE - AI - Debugging - May 23, 2024

There is a clear difference in color saturation for the nav mesh debug material between when lit by a light with low lux values (6) and when lit with high lux values (1000) and eye adaption is enabl ...