Foot Placement: Division by 0

UE - Anim - Gameplay - Jan 31, 2025

static FVector PointDirectionPlaneIntersection(const FVector Point, const FVector Direction, const FPlane Plane) { return Point + Direction * ((Plane.W - (Point | Plane)) / (Direction | Plane)) ...

Lumen ignores Landscape Holes (Landscape Visibility) when Hardware Ray Tracing is enabled and Ray Lighting Mode is set to Surface Cache

UE - Graphics Features - Ray Tracing - Jan 31, 2025

Context Lumen is the default global illumination and reflections system. Lumen renders diffuse interreflection with infinite bounces and indirect specular reflections in large, detailed environments ...

Foot Placement: Up vector is not configurable

UE - Anim - Gameplay - Jan 31, 2025

Up vector is not configurable so Foot Placement does support variable gravity cases. ...

Check hit when setting push-model array from a different actor's blueprint

UE - Networking - Jan 31, 2025

This is due to the same reason behind [Link Removed], as the stack object is passed to MARK_PROPERTY_DIRTY rather than the array property's owner.  ...

MRQ Graph - No Output Written to Disk with UNC Paths

UE - Anim - Sequencer - MRQ - Jan 30, 2025

When using a Movie Render Graph config, no output is written to disk if the Output Directory is set to a UNC path.  This does work with legacy presets. To fake a UNC path locally, use this conventi ...

Capsule component renders incorrectly with non-uniform scale

UE - Simulation - Physics - Jan 30, 2025

Capsule component renders incorrectly with non-uniform scale because the render uses the minimum between the X and Y values and the collision code uses the maximum between the two. This issue is men ...

Overridden mesh values are lost when upgrading from 5.5.0/5.5.1 to 5.5.2 on blueprint skeletal mesh components

UE - Anim - Runtime - Jan 30, 2025

This issue is caused by the backout in 38341618.  The original code that went into 5.0 affects serialization by changing the UCS modified properties.  When upgrading, the override is lost because th ...

Adding SmartObjectZoneAnnotationComponent to a blueprint actor causes a crash when building the package

UE - AI - SmartObject - Jan 30, 2025

If placing an actor with SmartObjectZoneAnnotationComponent added to blueprint actor in a level, it will crash when the level open. As a workaround, adding SmartObjectZoneAnnotationComponent to the ...

Regression: Cannot import Landscape Layer Weightmap along with Heightmap because of broken resolution check for tiled images.

UE - Graphics Tools - Terrain - Jan 30, 2025

When working in the "Landscape" editor mode, in both the "New" and "Import" tools, it is possible to import a single heightmap, as well as a weightmap for each layer. Each of these maps can come fro ...

No warnings or errors if a UEnum has Bitflags metadata, but no Flags flag.

UE - Gameplay - Blueprint Compiler - Jan 29, 2025

The problem here isn't obvious: the native enum, EAnotherEnum, is missing the Flags flag for the UEnum. As a result, K2Node_GetEnumeratorNameAsString returns the max enum when it gets a combined fla ...