CreatePatchLibrary is broken

UE - Rendering Architecture - Shaders - Nov 12, 2025

It seems the FEditorShaderCodeArchive.LoadExistingShaderCodeLibrary missed some functions, use FEditorShaderCodeArchive.AddShaderCodeLibraryFromDirectory instead could fix the issue. ...

Landscape Splines in Partially Loaded World Partition Levels Can Cause Nanite Landscape Invalidation

UE - Graphics Tools - Terrain - Nov 7, 2025

Certain placements of landscape splines in world partition levels can cause Nanite landscape proxies to invalidate, and switch back to their non-nanite version. This happens when specific regions of ...

Sequencer Crash when Hovering over Binding Properties on a Component with Spaces in its Name

UE - Anim - Sequencer - Nov 7, 2025

Crash when binding to new components that have spaces in their name and you attempt to access their bindings. ...

Animation Constraint Jitter in Sequence when Constraining Layered Control Rig node

UE - Anim - Anim in Engine - Nov 6, 2025

When using constraints with layered control rigs, you get jitter on the constrained object. ...

Rotator visual helper appears in local Presentation exports

TM - Tools - Nov 6, 2025

Reported in SF [Link Removed] The Rotator animator's visual helpers will be visible in locally exported Presentations when it should be hidden. This does not affect the Translator animator. ...

[AI] StateTreePropertyRef does not have option for Promote to Parameter

UE - AI - StateTree - Nov 5, 2025

I got a report from one of my designers that since we took 5.6, they have been unable to see the "Promote to Parameter" options when attempting to bind an output from one of our common tasks. I took ...

Outliner eye toggle fails to hide static meshes when Affect Indirect Lighting While Hidden is enabled

UE - Rendering Architecture - Nov 5, 2025

When a static mesh has the property Affect Indirect Lighting While Hidden enabled, toggling its visibility via the Outliner eye icon does not hide the mesh in the editor viewport. The actor remains ...

Crash when compiling Blueprint Function containing a connected Set Variable node for a local variable named after a replicated Actor property

UE - Framework - Blueprint - Nov 5, 2025

Creating a local variable inside a Blueprint Function with the same name as a replicated property of AActor (for example, “Role” or “RemoteRole”) and then using a connected Set Variable node for it ...

[PCG] Undoing the deletion of a pcg actor removes the Instance Category from the pcg component, specifically no graph parameter can be seen.

UE - World Creation - Procedural Tools - PCG Component - Oct 31, 2025

Context: PCGComponents on actors contains a category "Instance" that allows the user to connect a PCG Graph of their choosing to the PCGComponent which allows the Procedural Node Graph to sample the ...

Virtual Texture Collection Indexing Not Working

UE - Rendering Architecture - RHI - Oct 30, 2025

Textures at an index, other than 0, cannot be sampled from a Virtual Texture Collection in a material. When using the Texture Collection and Texture Object From Collection material nodes, with a Vir ...