Unreal Engine Issues

Material previews in the content browser display the default material checkerboard

Occasionally material and material functions previews in the content browser are displayed with the default material checkerboard, perhaps due to shaders not being compiled. UDN users are also expe ...

Renaming a Blueprint interface asset doesn't update the ImplementedInterfaces list in the Blueprint editor's Class Settings tab

There is no UI refresh for the Implemented Interfaces list in the Blueprint editor UI after a Blueprint Interface asset is renamed in the Content Drawer. Consequently, the interface cannot be remove ...

NPC - Texture Sample DI does not work on Niagara Parameter Collections

Texture sample DIs no longer work when used with Niagara Parameter Collections. This seems to affect Volume Texture DIs based on customer reports, but I have not confirmed this.  ...

SkeletalMeshComponent in dedicated server causes memory leak

As dedicated server does not have viewport, USkinnedMeshComponent::BoneTransformUpdateMethodQueue array keeps growing and never clear. ...

Blending cameras with different post process overrides, doesn't blend the post process correctly

LevelSnapshots affect level visibility when restoring snapshot

Slack thread [Link Removed] ...

When duplicating the last point in a closed-loop spline, its metadata is inserted at the wrong index

The SplineComponentVisualizer allows users to alt+drag on a spline point to duplicate it. When this is done on the last point of a spline marked as "closed-loop", the new point is correctly added at ...

Renaming external actor "label name" won't update in changelist viewer

Some of the state in the View Changes menu is cached and never updated. This menu should respond to external actor label renames in the Outliner and files being moved on disk. ...

Using a Dynamic Material Instance on a Nanite Landscape doesn't work

Networked root motion montage with rotation fighting smoothing

A licensee is reporting a sim proxy is playing a networked anim montage with root motion, that the rotation changes will fight between what's produced in ::SimulateRootMotion and ::SmoothClientPosit ...