MRQ - No Rayrtaced Shadows casted from Groom Caches with only 1 Spatial Sample

UE - Graphics Features - May 28, 2025

A groom cache will not cast a raytraced shadow with only 1 spatial sample. It does not matter how many temporal samples you have. ...

Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window

UE - Editor - Workflow Systems - May 27, 2025

Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window. As described in Steps To Reproduce, as soon as the Outliner Window is detached from the Main Window, most ...

Synthetic Benchmark Giving Inconsistent Results

UE - Rendering Architecture - RHI - May 27, 2025

A licensee has noted that the synth benchmark has been giving inconsistent results when they try to find optimal scalability settings for their application. The root cause of this is unclear, but lo ...

UAnimSingleNodeInstance doesn't sample notifies on montage animation tracks

UE - Anim - Gameplay - May 27, 2025

Notifies that are placed on animations referenced by montages aren't triggered when using the UAnimSingleNodeInstance to play back the montage. This is because - unlike on UAnimComposite - there is ...

Rendering of a Text Widget with Outline does not track LayerId correctly

UE - Editor - UI Systems - May 27, 2025

Text widget with Outline uses 2 LayerId levels to draw the outline and the text glyphs. This can be seen in function FSlateElementBatcher::AddShapedTextElement(), where lambda BuildFontGeometry() is ...

Dealing with spaces in perforce directories

UE - Foundation - Horde - May 26, 2025

Hello, We're encountering a fatal error when trying to set up a project in Horde using the AutoSdk: Fatal error: EpicGames.Perforce.PerforceException: Unable to parse view map entry: &quot ...

Renaming an input class or struct to a Chooser breaks evaluation of EvaluateChooser node

UE - Anim - Gameplay - May 23, 2025

The evaluate chooser node generates input pin names based on the parameter class / struct names. When that class or struct's name is changed, the pin doesn't update to account for that and so we si ...

USkeletalMesh::Serialize should preload dependent skeleton

UE - Anim - Runtime - May 23, 2025

In the skeletal mesh serialize method, we rebuild the ref skeleton for the mesh via this call:GetRefSkeleton().RebuildRefSkeleton(GetSkeleton(), bRebuildNameMap); So there's a dependency on the ske ...

World Source in Take Recorder does not record auto-tracked actors properly

UE - Virtual Production - Tools - Take Recorder - May 23, 2025

The Take Recorder plugin allows for multiple sources to be recorded during gameplay. The World Source is expected to record everything in the level when the Autotrack Actors option is enabled. Once ...

Iris - Subobjects marked COND_InitialOnly not replicated

UE - Networking - Iris - May 23, 2025

When adding replicated subobjects to the registered subobjects list, you can set replication conditions to control how the subobject is considered for replication. Without Iris enabled, a COND_Initi ...