4.22.1 Crash in FVulkanResourceMultiBuffer::Lock

UE - Rendering Architecture - RHI - Jul 31, 2019

Vulkan Multibuffer Lock mechanism for ReadOnly does not appear to be implemented. Temporary workaround has been provided to licensee. ...

Pivot Offset for grouped objects resets to another objects offset

Tools - Sep 19, 2019

Grouping objects with individual pivot offsets causes a new offset location to be selected after manipulating the groups rotation or translation.  ...

Engine crashes when trying to copy a setter node for a GameplayTag variable from one eventgraph to another eventgraph

UE - Gameplay - Sep 27, 2019

When trying to copy a setter node for a GameplayTag variable from one eventgraph to another eventgraph the engine crashes. If the blueprint that is copied into has a GameplayTag variable with the sa ...

Widget Components Add Thin Black Outlines to Images

UE - Editor - UI Systems - Dec 13, 2019

When a slate element that uses a png with a transparency the edges have a black outline. When the Widget3DPassThrough material is applied to the widget the effect is lessened, but is the outline sti ...

USpringArmComponent::UpdateDesiredArmLocation does not update overlaps

UE - Simulation - Physics - Dec 20, 2019

Objects attached to a spring arm component, moved by changes to the target length/rotation, do not have their overlaps updated. USpringArmComponent::UpdateDesiredArmLocation calls USceneComponent ...

Digital Human Eyes Don't Look Correct With Ray Tracing Translucency Enabled

UE - Graphics Features - Lumen - Jan 27, 2020

The eyes in the Digital Human demo don't look correct with Ray Tracing Translucency enabled in the post process volume. Found in 4.24.1 CL#10757647 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#111 ...

If Material is not overridden, Material will not be exported correctly.

UE - Editor - Content Pipeline - Datasmith - Exporters - Aug 4, 2021

This is because FFbxExporter::ExportStaticMeshToFbx() does not correctly determine the OverrideMaterials.  Therefore, the following code will not pass.else { Material = StaticMesh->GetMaterial(P ...

Adding a key to an Absolute transform section will accumulate an extra transform offset when a transform override is set on a sequence.

UE - Anim - Sequencer - Jan 13, 2022

The keyed transform value will have the origin offset applied to it when it should not be.  ...

When StaticMeshComponent is added to an empty Actor, no HLOD is generated.

UE - World Creation - Worldbuilding Tools - HLOD - Jul 1, 2022

When a Cube of StaticMeshActor is placed, it is generated without any problem. ...