Unreal Engine Issues

Subsurface Scattering Checkerboard with SceneColourFormat 3 (High Scalability) leads to a visual artefact when temporal upscaling is in use

Primarily visible at very low internal resolutions (25-33%), the SSS checkerboard with an RGB scene colour format (r.SceneColorFormat 3) causes a double-image artefact both internally and on the sil ...

Crash when an empty Anim Composite is attached to a Mesh component of a BP actor in a Level Sequence

There is a crash that will occur when an empty Anim composite asset is being referenced in the Mesh component attached to a BP actor within a level sequence. Crash also occurs in Live 5.4.4 - not a ...

UTextureRenderTarget2D uses TC_Default for PF_R16F instead of TC_HalfFloat

When using "ConstructTexture2D" from a render target that uses the format PF_R16F (RTF_R16F) the output texture won't retain the format and will become a four channel float texture.  The texture for ...

Landscape height data gets cleared when working with partially loaded landscapes

Changing the Global Time Dilation to a very small value and returning it to a large value (by either using the slomo console command or directly in BP) makes Physics simulating ragdolls fly off into space.

Changing the Global Time Dilation to a very small value and returning it to a large value (by either using the slomo console command or directly in BP - slomo sets TimeDilation) makes Physics simula ...

Problems with shadows on transluscent materials

Shadows on the surface of SingleLayerWater are heavily pixelated, and don't appear to use bilinear filtering at all. Also tested on //UE5/Release-5.5, CL: 36481335 ...

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 ...

Iris - Ensure in MarkObjectDirty when calling multicast from component owned by bOnlyRelevantToOwner actor

It seems as though the component is in scope for more than one connection, despite its owner only being relevant to one. Enabling Net.Iris.Filtering.ValidateNobSubObjectInScopeWithFilteredOutRootObj ...

Geometry collection components report incorrect mass for character movement components

A player cannot move heavier GC objects even if we have a valid setup due to the GC not reporting the correct mass.  ...

Strip out disabled Pose Search Database animations during cook

Animations that are disabled in the Pose Search database still get loaded in a cooked build ...