Unreal Engine Issues

SkeletalMeshComponent in dedicated server causes memory leak

As dedicated server does not have viewport, USkinnedMeshComponent::BoneTransformUpdateMethodQueue array keeps growing and never clear. ...

MoviePipeline: Field of View doesn't match viewport when using the Squeeze Factor property

Reference to material collection by Index instead of by Name causes inconsistency

A UDN user reports materials referincing parameter collections by index instead of by name. The problem manifests itself when rearranging the order of parameters belonging to collections, as the edi ...

Confirmation Dialog common UI in the Lyra Starter Game loses focus for gamepads after closing.

When changing the language options in the default Lyra Starter Game project (5.3 and 5.4) with a controller, the settings menu loses focus after closing the confirmation dialog. Focus can only then ...

Lumen doesn't use correct sky light settings when GI scalability changes from Low to High

When the Global Illumination scalability settings are changed in the editor from High to Medium, they primarily act on the r.Lumen.DiffuseIndirect.Allow and r.SkyLight.RealTimeReflectionCapture.  No ...

Cursor radius set via FSlateApplication::SetCursorRadius is ignored during FHittestGrid hit testing

The cursor radius configured through FSlateApplication::SetCursorRadius() is not respected during Slate hit testing. The radius value is correctly stored in FSlateApplication and passed into FHittes ...

Material Editor Viewport does not display World Position Offset

The preview Viewport in the Material Editor does not correctly render World Position Offset. It appears that the RenderVelocities pass (which is also drawing the depth for the preview sphere) does ...

Using Start Players as Spectators checkbox does not affect Player0

When setting up a custom game mode blueprint, if the "Start Players as Spectators" checkbox is checked the first player loaded in PIE will not be in spectator mode. ...

Skeletal mesh defined in code cannot be set in the editor.

Defining a skeletal mesh component in code and attaching it to the root component will not allow the component's details to be editable inside the editor. ...

Adjusting properties of a Blueprint instance's components in the level does not update references to the properties in the BP's Construction Script

Adjusting properties of a Blueprint instance's components in the level does not update references to the properties in the BP's Construction Script. Note: this would work in 4.8.3. Reproduced in 4. ...