Compilation error with Evaluate Chooser node when getting All Results from Subclass Of table

UE - Anim - Gameplay - May 22, 2025

Trying to use the Evaluate Chooser node in the All Results mode with a chooser table that returns the Subclass Of type results in a compilation error ("Array of Actor Object References is not compat ...

Reimporting an asset during PIE overwrites the bAllowCPUAccess value to true

UE - Editor - Content Pipeline - Import and Export - May 22, 2025

When reimporting a static mesh asset before PIE execution, the value of bAllowCPUAccess is false.  If reimporting a static mesh asset while PIE is running, the value of bAllowCPUAccess is true. In a ...

Specular highlight and roughness issue on clearcoat material with second normal at certain view angles

UE - Graphics Features - May 21, 2025

Specular highlights on non-Nanite meshes with a clearcoat material that has the second normal enabled will disappear at certain view angles. This can be worked around by adding a constant node to th ...

When importing static mesh using interchange and collision is generated, the asset does not have Collision Generated set to true

UE - Editor - Content Pipeline - Import and Export - May 19, 2025

Context: The Interchange Framework is Unreal Engine's import and export framework. When importing a mesh without collision, collision can be auto-generated. Problem: The problem is when importing s ...

Editor 'Build All Levels' discards Volumetrics Lightmaps in persistent level

UE - Graphics Features - May 14, 2025

Building the level or lightmaps can clear the volumetric lightmap. In 5.5, this requires you to perform a full build, or a lighting only build with a BSP brush in the scene. In 5.6, all level build ...

Editor crash when using PCG self pruning and complex collision

UE - World Creation - Procedural Tools - PCG Workflow - May 14, 2025

While testing out pruning points based on collision, it was observed by the licensee that using complex collision seems to crash the editor. The editor crashes with the following error: ``` Asserti ...

GPU PCG node fails to cook if within Subgraph

UE - World Creation - Procedural Tools - PCG Graph - May 13, 2025

When cooking a project that has a PCG graph with a subgraph containing a GPU node (Point Processor in the example provided), the cook fails with an illegal reference. However, the same GPU node used ...

ResavePackages commandlet (buildlighting) fails/asserts on reflection captures in non-visible sub-levels

UE - Graphics Features - May 13, 2025

When building reflection captures through the ResavePackages commandlet, it frequently triggers an ensure inside of ReflectionEnvironmentCapture.cpp. If distributed shader builds start causing prob ...

Reference Viewer doesn't show references to Primary Asset IDs

UE - Editor - Applied Usability - May 13, 2025

Context Reference Viewer can be used to view references between assets. There is a setting 'Show Management References' whose tooltip implies that references via PrimaryAssetID should be findable t ...

Unreal Editor Submenus Disappear on Mouse Hover on Linux during Remote Session

UE - Editor - Applied Usability - May 8, 2025

Sub-menus disappear when using Linux in a remote session in launcher build of UE Release 5.5.4. ...