Crash when exposing a TOptional<FName> or TOptional<FText> to the editor through a UProperty.

UE - Editor - Workflow Systems - Mar 25, 2025

Support for editor-exposed uproperties of type TOptional<T> has been added by CL 28199740 on september 2023. However, since then until today in UE 5.5, a crash can happen when exposing TOptional<FNa ...

In Vehicle sims, CenterOfMass override isn't factored into UpdateMassProperties

UE - Simulation - Physics - Mar 24, 2025

Origin from this UDN ticket, https://udn.unrealengine.com/s/question/0D5QP00000sGtbO0AS/chaosvehiclemovementcomponent-intertia-tensor-isnt-adjusted-for-center-of-mass-override?fromCase=1 TLDR is th ...

GAS: Async loaded GameplayCueNotify can execute cue events out of order

UE - Gameplay - Gameplay Ability System - Mar 22, 2025

Licensee reported problem via UDN. Context GameplayCues ('cue') are events that can be fired by game code, that are identified via a GameplayTag. Cues can be instantaneous or can be a state on any ...

Montage Section Links Don't Update When Section Deleted

UE - Anim - Gameplay - Mar 21, 2025

Hi there, I noticed that there is a problem with Montage Section links not updating when a section is deleted from a montage asset. We had a montage with a "Default" section and a "Loop" section. ...

MeshPaint textures don't work when r.VT.SplitPhysicalPoolSize is set

UE - Rendering Architecture - Mar 21, 2025

Whenever we have a non zero setting for r.VT.SplitPhysicalPoolSize, then mesh painting doesn't function correctly. ...

Physics constraint component doesn't work when placed inside a child actor, while using world partition and streaming is enabled

UE - Simulation - Physics - Mar 21, 2025

Context: In a World partition level, to reduce complexity and provide a scalable solution when creating new projects, grid cell streaming can be enabled. Problem: The problem is that physics constr ...

World Partition IsStreamingCompleted returns true while standalone level instances are still fully loading

UE - World Creation - Worldbuilding Tools - World Partition - Mar 21, 2025

IsStreamingCompleted returns true while standalone level instances are still fully loading. ...

Scenecapturecomponent not including Niagara effect if custom renderpass is used

UE - Graphics Features - Mar 20, 2025

When using an "FSceneRenderer::CustomRenderPasses", the View never has Distance Field textures assigned. Can it instead reuse the Distance Field clipmap from the main view? ...

Shadow artifacts on translucent objects when using the setting Cast Dynamic Shadows As Masked

UE - Graphics Features - Mar 20, 2025

Flickering shadow artifacts can be seen with translucent mateirals with "Cast Dynamic Shadows As Masked" enabled. Please note that the artifacts disappear when switching from virtual shadow maps to ...

Users can't change flags on asset entries in PSD when the asset was added via a Branch In notify

UE - Anim - Gameplay - Mar 19, 2025

Assets added to a PSD via a Branch In notify can't have their flags changed within the database. When the flags (like mirror, disable, etc) are changed, they revert back to the original value when ...