Unreal Engine Issues

UnregisterAsyncPhysicsTickActor not being called when actors end play via UWorld::RemoveFromWorld

Crash (Assertion failed "SystemInstanceController->IsSolo()") when enabling "Start with Tick Enabled" on a Niagara Component

Currently, Niagara Components are only expected to have their TickComponent() method called when their system is marked as "Solo", which makes them be simulated individually. In the most common scen ...

Crash in FNiagaraGPUInstanceCountManager::AddDrawIndirect when Android Vulkan Mobile preview platform is enabled

In the Android Vulkan Mobile preview mode, when multiple GPU niagara systems are visible and the user moves the camera around the level it can cause a crash, potentially caused by a race condition o ...

If pasting a section causes an overlap, don't allow it if the track doesn't allow overlapping sections

Binding lifetime sections aren't meant to overlap, but duplicating one, or pasting one can cause them to overlap, triggering an ensure. Duplication and copying and pasting are typical actions, so th ...

Curve Editor: Zoom/Pan in Normalized view constantly adjusting/changing

Panning/Zooming in Normalized view is constantly shuffling your view around.. See Attached Video: [Link Removed] ...

Chaos Clothing CreateClothActor takes a long time with LODs and Self-Collision

Spawning an actor with Chaos cloth causes a hitch when LODs or Self-Collision are enabled on the cloth. LODs and Self-Collision seem to compound the issue. Self-Collision requires a collision simul ...

GenerateConvexHullFromPoints incorrect results

FGeomTools2D::GenerateConvexHullFromPoints can result in a point cloud that is not convex or doesn't completely cover the full area from the source points. ...

LOD dithered fade-out transition does not work since UE5.4

When DitheredLODTransition is enabled for HierarchicalInstancedStaticMesh, in the previous version (5.1.1), dithering was applied during fade-in/fade-out, but in 5.4.3, dithering is not applied duri ...

Lyra: OnSpawn player abilities can fail to activate on client in networked sessions

A licensee who built their game on top of Lyra has reported that OnSpawn abilities, which is a feature provided by the LyraGameplayAbility base class via its ActivationPolicy, have a chance of faili ...

Build lighting for single stationally light level generates a shadow map in PF_B8G8R8A8 format

Texture format override to BGRA8 due to changes in CL-30603716. The following code can restore the previous behavior. void FShadowMapPendingTexture::StartEncoding(ULevel* LightingScenario, ITexture ...