Crashes occur when creating a static texture from a non-HDR Cube Render Target in DirectX12

UE - Rendering Architecture - RHI - Sep 11, 2023

While working with DirectX 12 in the project settings, the editor crashes by check() code when attempting to create a static texture from a non-HDR Cube Render Target asset. This crash doesn't occur ...

The Blueprint compiler is not consistent with UHT when generating DefaultToInstanced variables

UE - Gameplay - Blueprint Compiler - Sep 7, 2023

UnrealHeaderTool and the Blueprint compiler generate inconsistent metadata for object reference variables whose underlying class type includes 'DefaultToInstanced' metadata. UnrealHeaderTool-genera ...

[Audio Modulation] - Ensure is thrown when attempting to modulate a Source Effect at runtime

UE - Audio - Modulation - Sep 6, 2023

Does *not* occur in editor. Only in standalone and runtime. Occurs when modulating Chorus or Bit Depth Also occurs in 5.2 and 5.3. I also noticed the test with this is supposed to set the chorus e ...

Attribute Reader + Torus Shape Location module cause NaNs in CPU Niagara systems

UE - Niagara - Sep 5, 2023

It appears using the attribute reader with the shape location module set to torus will cause NaNs. The log mentions Sphere Radius among them, which should not be used with the torus mode. ...

Volumetric lightmap + stationary light has missing shadows

UE - Rendering Architecture - Sep 5, 2023

Primitives with the "Lightmap Type" set to "Force Volumetric" are not shadowed correctly. Issue dates back to at least 4.27.2. As a workaround, making FLightCacheInterface::GetStaticInteraction al ...

Editor/Details Panel allows duplicate keys in TMap/TSet UPROPERTY()

UE - Editor - Workflow Systems - Sep 5, 2023

When edited through the Details Panel in the Editor, TMap and TSet properties should not allow duplicate keys. When those keys are USTRUCTs with the “WithIdenticalViaEquality” trait, this should be ...

[MetaSounds] - Trigger inputs called by Execute Trigger Parameter refire on MetaSounds that become active after virtualization

UE - Audio - MetaSounds - Aug 31, 2023

If trigger execute is called in Blueprint, it will fire every time the sound recovers from being virtual, even if it has not been called again. See video example: [Link Removed] Also occurs in Re ...

Inconsistent behavior with Register State Branches

UE - Editor - Workflow Systems - Aug 31, 2023

ISourceControlProvider::RegisterStateBranches(...) doesn't reliably warn on conflicts ISourceControlProvider::RegisterStateBranches(...), specifically FPerforceSourceControlProvider, is supposed to ...

Cloth painting - Camera movements are broken once leaving the painting tool.

UE - Simulation - Physics - Character - Aug 29, 2023

Possibly a regression, but I could reproduce this issue as far as 5.2, so unsure when it started. The issue seems to be that the cloth painting tool lock the camera movements during painting, but d ...

Crash in persona editor when set postprocess animinstance using Linked Layer Anim to skeletal mesh

UE - Anim - Runtime - Anim Blueprints - Aug 29, 2023

Crash when set PostProcessAnimBlueprint in persona editor. Related to [Link Removed], [Link Removed]. ...