Unreal Engine Issues

Using Clip() in a material may cause the outline to be displayed incorrectly on the Editor.

This appears to be from an interaction between the Depth Fade Expression, clip() in a Custom Expression, WPO being enabled, and the fact that the pass that draws objects for the editor outline runs ...

DumpShaderStats doesn't output any shader data

The DumpShaderStats console command doesn't output any shader stats because the code to calculate that information in DumpShaderStats (Shader.cpp) is commented out https://github.com/EpicGames/Unrea ...

Nanite static mesh components are not individually highlighted when selected

Non-nanite static mesh components still show an individual highlight outline which individually selected even with other non-nanite static mesh components in the same actor. This is different when t ...

USplineComponent still editable in viewport despite setting as "read-only".

A spline component continues to be visible and editable in-editor despite all attempts to disable the functionality through the component's settings or uproperty specifiers. ...

Creating MaterialInstanceDynamic for a moving/crumbled geometry collection component, the rendering position is reset to the initial location

Creating a MID makes the render state dirty and the engine will recreate a new scene proxy without the current attitude. This results in rendering the object in incorrect location. Here is a tempor ...

SkeletalMeshActor flickers rapidly when PhysicsAsset contains multiple boxes.

SkeletalMeshActor using a PhysicsAsset with custom box shapes may flicker rapidly in Editor when not selected, and also flickers in PIE mode. If occlusion culling is disabled the flickering stops. ...

Add error message when unable to delete external actor file on disk

CSM Shadows disappearing at larger coordinates with different FOVs

Cascaded shadows disappear at some FOVs when far from the world origin. This behavior was not present in 5.2. Also found in CL: 32690246 in Release-5.4 ...

Incorrect relative position on replicated child actor

The issue seems to occur when a replicated child actor is received on the client before its parent. The child actor will first be spawned at its correct global position, with its root component's p ...

Nanite mesh not culled when owner is editor only actor in gameview

Nanite mesh is not culled because "DrawInGame" value in the primitive uniform buffer is always 1. Can be fixed with below modification:// in FPrimitiveSceneProxy::FPrimitiveSceneProxy DrawInGa ...