Unreal Engine Issues

Memory leak when rendering some meshes with ray tracing enabled

This memory leak seems to be caused by the TMemStackAllocator of FRayTracingMeshCommandOneFrameArray. Using the FDefaultAllocator for FRayTracingMeshCommandOneFrameArray works as a workaround. // ...

Material Quality Level not working with Layers

Cracks in polygons in BSP Optimize

This problem also occurs when the Create Convex Polygons checkbox is checked in the Pen tool. ...

Using both initial map and cooked maps setting via project launcher ignores initial map

The following workaround will allow UAT to pass the correct initial map to the application. RunProjectCommand.Automation.csprivatestatic void SetupClientParams(List<DeploymentContext> DeployConte ...

BuiltData is saved alongside it's map, even if lighting hasn't changed

Saving a map will always resave the map's BuiltData, even if the BuiltData hasn't been marked dirty. Changes were made to avoid marking it dirty for [Link Removed], but the call to SaveWorld in FEdi ...

Movable point light disappeared by MinScreenRadiusForLights and appeared back looks deemed.

The movable point light is abnormally lit when it disappeared by the setting of r.MinScreenRadiusForLights rather than "Max draw distance" and appears back. After you disable and enable the "Affect ...

Crash with Skeletal Mesh + Capsule Shadows + Render Static

Scene Capture Cube not affected by bloom

Metahuman eyes black on close up with ray traced skylight.

FConsoleVariableBase::SetOnChangedCallback behaves incompatibly with previous versions

FConsoleVariable::OnChangedCallback was changed to a multicast delegate in 4.26. Along with this, FConsoleVariableBase::SetOnChangedCallback was implemented to emulate a single delegate for compatib ...