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

UE - Graphics Features - Sep 30, 2024

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 ...

Level Instance desaturation effect does not respect occlusion when the selected object is occluded by a Nanite mesh

UE - Graphics Features - Nanite - Oct 14, 2024

When selecting an asset in a level instance that is being edited via LevelInstance/Edit, the silhouette of the object is visible through occluding nanite meshes. This has the effect of disabling th ...

Static/stationary child actor components are invisible and/or move position when placed inside a dynamically loaded level

UE - Framework - Components - Oct 31, 2024

When loading a non-world partitioned level into a persistent world partitioned level, parent actors with child actor components within the loaded map will move position or become invisible. Within t ...

Crashing when toggling maps containing Color Correct Regions

UE - Virtual Production - Rendering - Color - Nov 19, 2024

When maps with Color Correct Regions are streamed into another map have their visibility toggled during runtime, it will cause a memory access violation and crash the editor. ...

StopMontage with different BlendOutTime not taken into account after first StopMontage

UE - Anim - Gameplay - Nov 19, 2024

When an animation is currently blending out due to automatic blend out or GameplayLogic, further StopMontage with specific BlendOut will not update the time to blend out of the current blending out ...

Distributed HLOD builds always fail for projects not under the Engine Root

UE - World Creation - Worldbuilding Tools - HLOD - Dec 4, 2024

In BuildProject.txt, to make relative path to the project outside the engine root, all paths contains “..” after action command directory. D:/dev/UnrealEngine-5.5.0//HLODTemp/f09bf0f5/HLODBuilder0 ...

Nanite foliage missing outline when selected

UE - Graphics Features - Nanite - Jan 14, 2025

When a foliage actor contains instances of Nanite and Non-Nanite meshes, the Nanite meshes don't get a selection outline when the actor is selected.[Image Removed] ...

When a TSoftObjectPtr pointing to a const type is used as a parameter for a Dyanmic delegate, unreal marks it as deprecaded.

UE - Foundation - Cpp Tools - UnrealHeaderTool - Jan 21, 2025

A change has been done to the TSoftObjectPtr class that warns when constructing a pointer-to non-const from a pointer-to-const. This change makes sense and is correct. Example: UTexture2D* Loade ...

Temporal Super Sampling flickering temporal analysis visualisation mode indicates temporal analysis disabled for all objects on screen

UE - Graphics Features - Jan 24, 2025

This can also be observed while running in PIE mode using the console command "r.TSR.Visualize -2". It is not clear whether it is only the TSR flickering temporal analysis visualization that is exh ...

World Position is incorrect when used to control the opacity mask in a nanite spline mesh

UE - Graphics Features - Feb 20, 2025

When calculating the opacity mask, Nanite spline meshes do not have the correct World Position in the Material. This leads to visual artifacts when the mask relies on the world position. ...