Unreal Engine Issues

IES Texture Icon changes to a gradient bloom once assigned

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

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 ...

Multi-User - Conflict between two users dragging a selection

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, ...

[CrashReport]Assertion failed: InitState == EWorldPartitionInitState::Uninitialized [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\WorldPartition\WorldPartition.cpp] [Line: 1485]

Generated from CrashReporter Logs can be obtained via Crash Reporter ...

TSR & WPO - Distortion around mesh edges

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

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

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 ...

UHT doesn't warn that a class/structure size is larger than 65535

Static Mesh Scene Actor Flipped Normals

Static meshes can have normals flipped when the actor they are attached to has one component of its scale inverted. ...

Transient Subclasses of ABrush default to supporting external packaging

ABrush::SupportsExternalPackaging overrides the base implementation of  AActor::SupportsExternalPackaging which returns false for transient actors, but it doesn't call super. As a result, transient ...