Actor foliage does not respect "foliage.CullDistanceScale"

UE - Engine Scaling - Streaming - Oct 15, 2024

Actor foliage does not respect the "foliage.CullDistanceScale" console variable. This was brought up in a UDN: [Link Removed] ...

Foliage painted on Mesh Terrain disappears after edits are made

UE - Graphics Tools - Mesh Terrain - Sep 22, 2026

Mesh Terrain recreates the visible section actors when edits are made, and those sections in the editor don't correspond to the ones at runtime, which breaks the ComponentId that the foliage system ...

bStaticWhenNotMoveable in Lighting category instead of Physics

UE - Runtime - Character - Oct 24, 2025

"UPrimitiveComponent::bStaticWhenNotMoveable"'s category is set to Lighting, not Physics. This causes it to be hidden when lighting-related properties are hidden, even though it controls physics sta ...

Landscape component's LODBias settings is ineffective

UE - Graphics Tools - Terrain - Landscape - Jan 7, 2025

[Image Removed] Jira Bot attaches conversation thread from Slack [Image Removed]Ryan Bickell – 2025-01-07 10:54:10 UTC Hello and happy new year! I'm messing with the Landscape component LODBias sett ...

Niagara particles bounce instead of resting on AMD GPU in SM6

UE - Rendering - Features - Jan 27, 2023

Additional Info URL [Link Removed]…]2F00O4z000006EGZXEA4%2Fview%3FqueryScope%3DuserFolders Link to repro - [Link Removed] Old UDN question that may be relevant, similar visual bug - [Link Removed] ...

Shadows become disabled for Datasmith imported lights on resync

TM - Interoperability - Aug 4, 2026

Reported in SF [Link Removed] For Datasmith models containing lights, resynchronizing the model after any changes will cause any lights that had shadows enabled prior to the sync to have that setti ...

Custom Water Body does not work with its own Distance Culing

UE - Graphics Tools - Terrain - Water - Sep 14, 2023

WaterBodyCustom seems not to work with Distance Culling settings on its own actor, either Draw Distance/Never Distance Cull or Allow Cull Distance Volume.  It only can be controlled by the CullingD ...

WPO is incorrectly generated on materials using Material Attributes as input to Landscape Layer Blend node

UE - Rendering - Architecture - Materials - Jan 31, 2024

This comes from this UDN : [Link Removed] It occurs with this setup :  [Image Removed] , where Set Material Attributes expressions act as inputs to the Landscape Layer Blend material expression. ...

Undo and ConstructionScript break the AttachChildren array

UE - Framework - Components - Nov 14, 2019

Undo fills AttachChildren array with null by the undo serializer. After that, a construction script tries to remove child components from parent component's AttachChildren but it can't find its poi ...

Realtime Rendering toggle disabled after using Cloth Painting

UE - Runtime - Deformable - Jul 29, 2021

After finishing cloth painting, the ability to toggle Realtime Rendering in the viewport is greyed out. Additionally, the Disable Realtime Override button doesn't seem to have any effect. This probl ...