Unreal Engine Issues

World position offset behaves differently when setting its value directly on the result node

The world position offset input of the result node does not behave consistently. There is an obvious visual difference between the setting it by connecting a float3 color constant, versus setting th ...

MediaPlayer failed to be open on Mac and IOS

Unwanted offset on curves when importing animation assets

Hello, We seem to have encountered some unwanted behaviour when importing certain curves from our animation fbx assets into Unreal. Some of these curves don't have keys from the very first frame, b ...

Eye Adaptation Inverse node does not work with volumetric materials

The EyeAdaptionInverse node works differently for surface materials and volumetric materials. In surface materials, it allows to have a consistent glow during day and night time, however in a volume ...

[MetaSounds][Builder API] - Editor crashes when setting node position to a large value

Setting the location of a node a the MetaSound Editor Subsystem to a very large value crashes the editor.Unhandled Exception: EXCEPTION_STACK_OVERFLOW Crash reporter link: [Link Removed] ...

VSM SMRT SamplesPerRay CVars behave differently if groom assets are present leading to a potential full-scene shadow

When a groom is present, setting any SamplesPerRay SMRT CVar to zero results in an unexpected complete shadow projected from the light. ProjectLight() in VirtualShadowMapProjection.usf has addition ...

GetMouseX returns stuttering value if ShowMouseCursor is enabled

Showing the mouse cursor and holding down the left mouse button while dragging will cause the MouseX event to broadcast incorrect axis values.  ...

AO Decals not working when using Lumen

When lumen enabled, and with static lighting disabled, we expect the Material AO to contribute to diffuse lighting occlusion. However AO from decals does not have any effect. ...

[Legacy][FBX] Animation curves are not added to the skeleton anymore

When painting on a landscape with edit layers, there are UV distortions happening across the boundaries of paint layers when material is using SetMaterialAttributes

Context Landscape Edit Layers enables users to paint landscapes using non-destructive layers, and can add multiple layers to the landscape that can be edited independently from each other. Problem ...