Cinematic Prestreaming does not work in Shipping Builds

UE - Graphics Features - Jan 9, 2025

When the Cinematic Prestreaming plugin is used to generate and cache Virtual Texture Feedback requests, they work when played back in Unreal Editor. A Licensee has reported that they do not improve ...

CableComponent particles spawn at origin when gameplay starts depending on component registration order

UE - Framework - Components - Jan 9, 2025

A workaround was provided for the user, to use 'Set Attach End to Component' nodes during BeginPlay. While this fixes the issue in gameplay, the editor preview no longer syncs with gameplay. ...

External Data Layers in level not removed when Game Feature Action is Removed or set to None

UE - World Creation - Worldbuilding Tools - Jan 9, 2025

When using External Data Layers in conjunction with Game Feature Plugins and World Partition levels, removing a Game Feature Action or changing its type to "None" does not remove the associated Exte ...

It is possible for PreLoadScreen to leak memory when an EngineLoadingScreen returns IsDone while still loading

UE - Graphics Features - Jan 9, 2025

It is possible for a class that implements IPreLoadScreen to leak memory if GetPreLoadScreenType returns EngineLoadingScreen and IsDone returns true before the engine signals loading is completed vi ...

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 ...

SetActorLabel() is slow on Landscapes

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

I've noticed calling SetActorLabel() on a Landscape will call PostEditPropertyChanged() which causes the Landscape Components to regenerate all collisions. As per the repro, this can take a long tim ...

A non moving looping camera sequence flickers.

UE - Anim - Sequencer - Dec 20, 2024

There is a small flicker on a looping single camera sequence where the camera doesn't move. Because the camera is static, you would not expect to see a flicker in lighting conditions. ...

Frame snapping does not work in AnimNotifyPanel

UE - Anim - Runtime - Dec 20, 2024

When snapping for frames is turned on, dragging an anim notify state does not result to being snapped on a frame. ...

Inconsistent events triggered by FlushProcessedKeys during keyboard hold input

UE - Gameplay - Input - Dec 20, 2024

Key repeats from the OS do not affect the EnhancedInput normally, but it causes inconsistent event triggers when FlushProcessedKeys is called with holding a keyboard key down. Removing references t ...

Broken hair material with light function

UE - Graphics Features - Dec 19, 2024

Hair Materials do not react to Light Functions in the same way as other Materials. There is a visual difference between a Directional Light at 1 lux with no Light Function and a Directional Light at ...