Unreal Engine Issues

Fields with Maximum resolution are not affecting all leaves of a Geometry Collection

Fields with Maximum resolution are not affecting all leaves of a Geometry Collection on 5.4 and onwards. When calling GetRelevantParticleHandles() a Maximum Resolution field does return all particl ...

Switching project monitor with shift+win+arrow keys

Using Windows+Shift+Arrow keys to move the application window in Windowed Fullscreen from a low resolution monitor to a high resolution monitor does not resize the application window on a Windows 10 ...

Launching multiple Editor processes in UE 5.5 can throw warnings due to USD Core plugin initialization

Launching multiple Editor processes at the same time with the USD Core plugin enabled can cause warnings to be logged like the following:LogUsd: Warning: Failed to update LibraryPath for USD plugInf ...

Chaos Trailing Events not exposed to Blueprints and only accessible via Niagara Chaos DI

Chaos Trailing Events not exposed to Blueprints and only accessible via Niagara Chaos DI. The licensee noticed that the Trailing event is not available to BPs. It's expected that the same data avail ...

Compile error when including OnlinePurchaseInterfaceSteam.h

Mover MoveDirectionIntent can be 0 due to interpolation

If two states have MoveDirectionIntent vectors that are opposite to each other, interpolating between these states can result in MoveDirectionIntent being 0. This may cause issues for animation blue ...

[Interchange] Disabling Interchange 'Show Sections' in the Details Panel is not persisted

WorldPartition Actors have invalid reference to level BP and fail changelist validation

UV Offset Effect Material in RetainerBox Causes Visual Artifacts in Editor Preview

When a UV Offset is applied in a RetainerBox effect material, visual artifacts appear only in the editor — not at runtime — if a widget with a dotted preview outline (like CanvasPanel) is placed dir ...

Niagara color picker user parameter preview no longer updates until confirmation

Starting with UE 5.4, the Color Picker Tool no longer updates preview values in real time for certain editor windows like Niagara when working with User Parameters. This behavior is a regression fr ...