Linear Color Struct values are changed when upgrading from 4.26.2 to 4.27.1

UE - Gameplay - Blueprint - Dec 2, 2021

It seems that changing the value to something different than the default of a Linear Color Struct variable, results in the value being changed when upgrading the project to a new engine version. Thi ...

The showdebug abilitysystem command crashes editor when the target is a child actor

UE - Gameplay - Dec 2, 2021

An actor with an AbilitySystemComponent that is spawned by a ChildActorComponent will have a null AbilityActorInfo. This leads to a crash in the ASC when GetDebugTarget attempts to access AbilityAct ...

The drawing order of widgets becomes wrong when GlobalInvalidation is enabled,

UE - Editor - UI Systems - Slate - Nov 26, 2021

When trying to create a widget with specific steps, the drawing order may not be correct. This is not reproduced when Global Invalidation is disabled, and the state can be restored. This issue is pr ...

Color samples are not displayed when switching to light complexity view.

UE - Graphics Features - Nov 25, 2021

In other views, such as Shader Complexity, color samples are displayed. ...

Get Physics Linear Velocity node does not return the correct values in UE5

UE - Simulation - Physics - Nov 24, 2021

The Get Physics Linear Velocity node seems to only output a vector of 0.0, 0.0, 0.0 no matter what the velocity of the object it's measuring is.  Tested in //UE4/Release-4.27 @ CL 17735300 and th ...

Crash using D3D raytracing with Support Ray Tracing unchecked static mesh

UE - Graphics Features - Nov 24, 2021

Static mesh that does not have Support Ray Tracing flag does not have a GeometryRHI object. So it causes a crash in FD3D12RayTracingScene. Excluding instances that do not have a GerometyRHI in FDef ...

A WaterBody blueprint class with an added component will not compile if Blueprint Nativization is enabled

UE - LD & Modeling - Terrain - Water - Nov 23, 2021

This is Not a regression. Tested in: //UE4/Release-4.26.2 CL15973114 Binary - Reproduced //UE4/Release-4.27.1 CL17735300 Binary - Reproduced When adding a component to a Water Body actor it should ...

Crash when changing the name of a variable within in a struct that's being used by a Control Rig Blueprint

UE - Anim - Rigging - Control Rig - Nov 23, 2021

It seems that changing the name of a variable inside a struct that is being used by a Control Rig variable causes a crash. Additionally, after making the change and recompiling the Control Rig bluep ...