Unreal Engine Issues
Unreal Engine Issues
MediaPlayer failed to be open on Mac and IOS
UE - Platform - Apple - Oct 9, 2023Eye Adaptation Inverse node does not work with volumetric materials
UE - Graphics Features - Jun 23, 2025The 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
UE - Audio - MetaSounds - Aug 9, 2023Setting 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
UE - Graphics Features - May 28, 2025When 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
UE - Gameplay - Input - May 11, 2022Showing 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
UE - Graphics Features - Oct 14, 2022When 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
UE - Editor - Content Pipeline - Import and Export - Jan 17, 2025UV Offset Effect Material in RetainerBox Causes Visual Artifacts in Editor Preview
UE - Editor - UI Systems - UMG - Apr 22, 2025When a UV Offset is applied in a RetainerBox effect material, visual artifacts appear only in the editor — not at runtime — if a widget with a dotted preview outline (like CanvasPanel) is placed dir ...
When painting on a landscape with edit layers, there are UV distortions happening across the boundaries of paint layers when material is using SetMaterialAttributes
UE - Graphics Tools - Terrain - Landscape - Mar 10, 2025Context 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 ...