IES Texture Icon changes to a gradient bloom once assigned

UE - Editor - Workflow Systems - Sep 13, 2023

This is not a regression. Tested in //UE5/Release-5.2 CL26001984 After assigning an IES Profile to a light the icon for that profile updates to a gradient bloom preventing the profile from being pr ...

Deadlock in UPhysicalAnimationComponent::UpdatePhysicsEngineImp

UE - Simulation - Physics - Sep 13, 2023

Deadlock in Chaos during PIE; the main thread is in USkeletalMeshComponent::HandleExistingParallelEvaluationTask waiting for a task to complete, and a worker thread is running that task and is in US ...

Free physics constraints between two objects of differing size causes smaller object to jitter

UE - Simulation - Physics - Sep 13, 2023

A cube constrained to a physics actor will start to jitter uncontrollably when interacted with. (see attached media and repro steps for more details) Tested in the following //UE5-Release-5.3-CL ...

Multi-User - Conflict between two users dragging a selection

UE - Virtual Production - Tools - Multi-user - Sep 12, 2023

During a Multi-User Editing session with two or more team members two or more users can take control of the same actor and move it to different locations in the viewport at the same time. However, ...

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 ...

TSR & WPO - Distortion around mesh edges

UE - Graphics Features - Sep 8, 2023

The background around a mesh moving via WPO is distorted. Mesh is correctly outputting velocities. ...

[AI] BehaviorTreeComponent fails to run a new tree if the current tree ends with a latent abort

UE - AI - BehaviorTree - Sep 8, 2023

If a BT ends with a latent abort with another BT asset pending initialization, the BehaviorTree component will stop the tree that was aborted, but it does not start the new tree. You can check with ...

Hardware Accelerated Video Decoding with DirectX 11 causes videos to render black when loaded in a Media Player

Media Framework - Sep 7, 2023

This is not a regression. Tested in //UE5/Release-5.2 CL26001984. Hardware Accelerated Video Decoding requires DirectX 11, but it appears the combination causes media players to only render a black ...

[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 ...

Scene View Extension - Subscribing to Tonemap's afterpass renders black screen

UE - Rendering Architecture - Aug 31, 2023

Callbacks for the Tonemap's afterpass that return identity return black screen unless there is a post-process material. ...