Unreal Engine Issues

Editor preview safe zones for notched iPhones do not match those used at runtime

Hi, on iOS we ask the device for its cutout regions, but the values returned by the device can be overridden using the SafeZone.Landscape.* cvars. However these are on-device only settings. When th ...

Raytraced translucency makes ExpHeightFog black

Does not occur in path tracing nor rasterized translucency. ...

Recent change to Material Expression code missing a case for "exp2" function in switch (cpp)

The function "FMaterialDerivativeAutogen::GetFunc1ReturnType(...)" does not have a case for "EFunc1::Exp2". Also found in Release-5.4, CL: 331987674 ...

[AI] Incorrect collision for USplineMeshComponent

The collision for a spline mesh can be calculated incorrectly. The issue appears to be when Alpha is out of range when calculating the slice transforms at splice offsets. ...

Setting a poseable mesh component as leader component for a skeletal mesh component causes an access violation.

When a skeletal mesh component's leader component is set to a poseable mesh component, the application will run into an access violation when it tries to update animation curves and morph targets. ...

Imported material is incorrectly tinted when imported via Interchange.

Materials are correct in UE. It is not clear for me why the materials have tint. Possibly a remnant from the DCC. Sketchfab, UE, and Blender displays the materials cortrectly, without the blue tint. ...

GAS: Initial OnRep_SpawnedAttributes from DefaultStartingData clears attribute values for already replicated ActiveGameplayEffects

Context The property 'DefaultStartingData' in AbilitySystemComponent can be configured from blueprint to spawn default attribute sets. This happens OnRegister. For runtime spawned actors like pawns ...

Crash when importing some .skp files on MacOS

SketchUp UV scale is not consistent for Datasmith imports.

This is not a regression.  We have 2 issues here.  First we have different tiling for the different materials, since the way sketchup handles texture scale. They scale the UVs of the object instead ...

Object Tracks in SubSequencer Lose References When Blending is Enabled

We're encountering an issue when using object tracks in subsequencer. When enabling blending on a subsequencer section, the object reference resets throughout the entire duration of the track. Inte ...