Incorrect derivative ops detection when Add node is used with Nanite Pass Switch node in material graph

UE - Graphics Features - Mar 11, 2025

Plugging an Add node which adds a constant value into a Nanite Pass switch node results in derivative ops to be detected where there should be none (which show up as red in the No Derivative Ops deb ...

Spectral Analysis Delegates Do Not Behave As Expected If 3 Or More Are Attached To The Same Submix

UE - Audio - Submixes - Aug 19, 2022

When attaching 3 or more Spectral Analysis Delegates to the same Submix, some delegates start returning only zero values. If this is a known limitation of Spectral Analysis Delegates, we should prob ...

UPrimitiveComponent mouse events when underneath Slate widgets not correct

UE - Editor - UI Systems - Slate - Jan 7, 2016

Licensee is adding a widget to the viewport overlay via AddViewportWidgetContent(). The widget receives mouse input when hovered. They return unhandled from all their widget's onmouse functions and ...

AutoLOD changes the static meshes LOD at different distances in VR Packages and Previews than in Editor

UE - Platform - XR - Jul 30, 2020

Packaged VR Projects and VR Previews change the LOD at a closer distance than in editor. ...

Crash when user enters PIE with an Oculus device connected

UE - Platform - XR - May 26, 2021

The third person template project is crashing when someone enters PIE with an Oculus VR headset connected. This is a regression, as it does not occur in 4.26.2 CL 16018004. ...

Sky Atmosphere Material Nodes not Correctly Represented in the Surface Cache for Nanite Enabled Static Meshes

UE - Graphics Features - Apr 1, 2025

When nanite is enabled on a static mesh, lighting contributions from Sky Atmosphere material nodes are not incident on the static mesh and no longer present in the overall lighting of the scene. Th ...