Iris - Missed subobject destruction can cause incomplete client state

UE - Networking - Iris - Oct 7, 2024

From UDN assigned to [Link Removed]  ...

GPU crash dump triggered with Intel H/HX processors

TM - Rendering - Oct 3, 2024

Some users have recently reported 'GPU crash dump Triggered' crashes launching, importing, or performing simple actions. Communicating with one user, general GPU TS has not helped(check for OS/drive ...

Crumbling Geometry Collections do not render for one frame when child clusters crumble

UE - Simulation - Physics - Destruction - Oct 3, 2024

Crumbling Geometry collection do not render for one frame when child clusters crumble. In the repro project a 4 particle GC is told to crumble. The single GeometryCollectionActor is then split into ...

Material Graph Editor crash when changing the value of a node entering a reentrant expression

UE - Rendering Architecture - Materials - Oct 1, 2024

It is possible to cause an editor crash when changing a the value of a node involved with a reentrant expression. See the steps to reproduce for more information. Specifically, the crash occurs whe ...

FBX exporter does not support Level instances

UE - Editor - Content Pipeline - FBX - Sep 30, 2024

Crash when an empty Anim Composite is attached to a Mesh component of a BP actor in a Level Sequence

UE - Anim - Sequencer - Sep 27, 2024

There is a crash that will occur when an empty Anim composite asset is being referenced in the Mesh component attached to a BP actor within a level sequence. Crash also occurs in Live 5.4.4 - not a ...

UTextureRenderTarget2D uses TC_Default for PF_R16F instead of TC_HalfFloat

UE - Texture - Sep 27, 2024

When using "ConstructTexture2D" from a render target that uses the format PF_R16F (RTF_R16F) the output texture won't retain the format and will become a four channel float texture.  The texture for ...

Landscape height data gets cleared when working with partially loaded landscapes

UE - Content Tools - Terrain - Landscape - Sep 26, 2024

Lumen doesn't use correct sky light settings when GI scalability changes from Low to High

UE - Graphics Features - Lumen - Sep 24, 2024

When the Global Illumination scalability settings are changed in the editor from High to Medium, they primarily act on the r.Lumen.DiffuseIndirect.Allow and r.SkyLight.RealTimeReflectionCapture.  No ...