Decals are corrupted when VRS is enabled on some console platforms, and possibly PC

UE - Platform - Console - Rendering - Oct 1, 2024

Blocky artifacts and flickering are sometimes visible when using VRS and decals. Setting r.VRS.Decals=0 removes the flickering. See Additional Info URL for details. ...

Crash during garbage collection when container UPROPERTIES specify raw interface pointer element types without TScriptInterface wrapper

UE - Foundation - Cpp Tools - UnrealHeaderTool - Oct 1, 2024

When a UPROPERTY() TMap or TArray has raw interface pointers as element type, the garbage collector tries to handle them and crashes. For raw interface pointers without a container, UHT generates a ...

Material overrides not respected when generating HLODs.

UE - World Creation - Worldbuilding Tools - HLOD - Oct 1, 2024

When generating HLODs, it is possible for the generator to ignore material override settings. The generator will not respect the constants, and does not change them in the Material with a default se ...

Sequencer: Skeletal Animation with montages can cause blending issues when re-playing the same sequence on the same character

UE - Anim - Sequencer - Oct 1, 2024

The code in MovieSceneSkeletalAnimationSystem.cpp storages montage data on a per skeletal mesh component, per section basis. This (and a few other bits of logic) cause issues for external UDN user w ...

Modify AVolume brush shape dirties level

UE - World Creation - Worldbuilding Tools - OFPA - Sep 30, 2024

Changing the brush shape of an AVolume external actor dirties the level. ...

Material functions should be able to output the same data as it can accept as inputs

UE - Rendering Architecture - Materials - Sep 30, 2024

Material Functions cannot output Texture Objects or Booleans. This seems to be because the Material Editor believes that the outputs are Floats, and forbid connections to inputs that take Textures ...

Issues with global invalidation (MoviePlayer)

UE - Editor - UI Systems - Sep 27, 2024

It was mentioned that the global invalidation should be toggled off during loading screen and subsequently restore the state after. A request was made for this dynamic behavior be part of the engin ...

Deleting an external actor without checking it out causes bad state

UE - Editor - Workflow Systems - Sep 26, 2024

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.

UE - Simulation - Physics - Sep 26, 2024

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

UE - Rendering Architecture - Sep 24, 2024

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 ...