TranslucentVolumeAmbient is darkened in InjectTranslucencyLightingVolume pass when using VSMs with r.Shadow.Virtual.ForceOnlyVirtualShadowMaps is Off

UE - Graphics Features - Shadows - Nov 18, 2024

CSM targets are still created and affect the InjectTranslucencyLightingVolume pass when moving in a project that only uses VSM causing over brightening of fog planes and other translucent meshes. r ...

Details Panel - USTRUCTS do not save their expansions properly

UE - Editor - Workflow Systems - Oct 6, 2023

Currently USTRUCTS do not support saving expansions properly. While we won't implement a separate pathway for USTRUCTS to save their expansions, a general solution to save expansions for class or st ...

Editor crash after reverting a Blueprint asset in source control

UE - Framework - Blueprint Compiler - Feb 26, 2025

Added context from dev support ticket:The crash occurs because FDelegateProperty::Serialize accesses a dangling SignatureFunction pointer. Given that its derefencing dangling pointers the specifi ...

Skelmesh Bake Materials doesn't remove old materials from slots

UE - World Creation - Worldbuilding Tools - Merge Actor - Mar 24, 2021

When an LOD get materials reduced to one with Bake Materials, it doesn't delete the extra slots on the LOD. So if starting with 10 slots on the skelmesh, then baking, slot 1 gets the newly baked mat ...

Static mesh components spawned in the UCS along a spline require lighting to be rebuilt after a map reload.

UE - Gameplay - Components - Jun 17, 2021

Seems to be somehow related to components being instanced in the Construction Script according to a spline. The transforms are slightly off by more than 1.e-2f. They are reconstructed on load with a ...

Perforce Version Control visually appears to allow deletion of locked files in Content Browser

UE - Editor - Workflow Systems - Nov 23, 2022

Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...

Build geometry removes spline component visibility

UE - Framework - Components - Jan 23, 2023

A spline component will become invisible after building geometry with the spline actor in the level. This issue is occurring in //UE5/Release-5.1 @ Binary CL 23058290 This issue is NOT occurring ...

Create a Material Editor node that exposes the VertexID

UE - Rendering Architecture - Materials - Feb 20, 2023

A UDN user has requested that we expose the VertexID as a Material Editor graph node. According to a brief thread with [Link Removed] , this is a useful feature to add. https://udn.unrealengine.com ...

Large Landscapes using World Composition have weird LODs when streamed out and back in

UE - World Creation - Worldbuilding Tools - World Composition - Mar 13, 2020

When World Composition Sublevels are streamed out and back in the LODs appear distorted. This reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 (CL-9631420), 4.25 Preview ...