Unreal Engine Issues

Slate Post Buffer does not work correctly when changing Default Back Buffer Pixel Format

Local fog volume rotation causes offset issues at high world position values

Local fog volumes have a substantial offset when placed at a far distance from world origin and is then rotated. This was not the case in 5.3 when tested under the same conditions, so this is likely ...

In BP/Python Editor Utilities, function SetEditorProperty() unexpectedly fails for Actor Reference Properties on External Actors.

As part of the Python and Editor Scripting Tools, it is possible to programmatically set variables in actor instances of the current level just like when using the Details Panel in the Level Editor. ...

Lumen screen traces from hair cast noising moving shadows on faces

There is moving blotchy noise on the head and face from hair when Lumen HZB tracing hits hair.  CL 33258050 fixes the noise in the hair, but tracing still hits hair when it starts from surfaces like ...

FDeferredDecalProxy cannot be initialized to not fade even if FadeDuration is set to 0

FDeferredDecalProxy always fade because InitializeFadingParameters is always called and leaves InvFadeDuration at 1.0 and the LifetimeAlpha calculation in FDeferredDecalPS::SetParameters gets a very ...

FFragmentTypeParameters is missing a default initialiser for FFragmentTypeParameters::Flags

FFragmentTypeParameters misses a default initialiser for FFragmentTypeParameters::Flags. This can lead to Flags being left in an undefined state, which can ultimately cause non-determinism during th ...

PCG causes crash when UGrassInstancedStaticMeshComponent is set as a mesh entry for the static mesh spawner node

PCG causes crash when UGrassInstancedStaticMeshComponent is set as a mesh entry for the static mesh spawner node. ...

Missing material bake output index entry for mesh(section)

HiddenInGame issues with Nanite enabled meshes

Nanite meshes marked Hidden in Game do not have selection outlines in the editor. ...

Crash when locate_bound_objects is called

This has been tested internally using an editor utility widget yielding the same results. That small project is attached. BoundingObjectTest. 1) Open the project 2) Run the Editor Utility Widget ...