Unreal Engine Issues

Alpha blending is done twice when using RenderOpacity of RetainerBox's parent slot

Licensee reported that alpha blending is done twice in the code below, and the fix below seems to fix it. .\Engine\Source\Runtime\UMG\Private\Slate\SRetainerWidget.cpp From:const FLinearColor Compu ...

Stencil Test Post Process Breaks in Stereo Rendering

[Link Removed] post process material is blacking out our left eye A test project is provided. ...

Errors occur when moving duplicated Material Instances

Licensees have reported that two UMaterialInterfaceEditorOnlyData objects are being created for duplicated assets, causing a name conflict when renaming. ...

Editor Crashes when copy/pasting an emitter in the Niagara timeline

When creating the emitter's track widget we search for the stack view model's root entry, but the stack view model pointer is null, so we crash.  ...

Calling RemoveAllAnchors function on a non-clustered geometry collection falls extremely fast

Non-clustered geometry collections applied RemoveAllAnchors are not put into FPBDRigidsSOAs::DynamicGeometryCollectionArray, so acceleration is not reset every tick and they fall super fast. The fol ...

NiagaraEditor timeline folders are not saved correctly

It works correctly in 5.0.3. ...

Index of Texture Cube Array cannot be specified with VisualizeTexture on D3D11

Licensees have reported that they always see Index 0 for Texture Cube Arrays. Looking at the RenderDoc, Index1 has a white texture but it's not actually visible.[Image Removed] ...

BlackboardComponent observer can be called for the wrong key

We need to, at least, prevent this by clearing observers when running a new BT using a different blackboard. Must also think that this might affect licensees relying on the current behavior (might h ...

Changing VectorParam channel names in Material Layer do not propagate to Material Instances

Material Layer Texture Params don't warn on different sampler types

This texture validation exists for global parameters, and should read as "Warning: Param samples /Engine/Functions/Engine_MaterialFunctions02/ExampleContent/Textures/newhplaneNormalsMap.newhplane ...