Unreal Engine Issues

Adding weights to bones doesn't properly update skeltree

DynamicMaterialParameters Niagara module resets write flags on emitter update

When using the DynamicMaterialParameters Niagara module in UE 5.6, 5.7, and UE5-Main (CL 50298778), updating an emitter causes Boolean values, such as Index0Float0Write, to reset to default values, ...

Mover | FStanceModifier adjustment teleport on Crouch/Uncrouch can fail when child components intersect world

Context When crouching and uncrouching with Mover’s DefaultMovementSet, the pawn capsule’s half height is changed. This behavior mimics the CharacterMovementComponent. To ensure the pawn’s feet sta ...

Mass entities initializing fragments on the incorrect archetypes due to shared CreationContext

UMassAgentSubsystem::HandlePendingInitialization creates a single FEntityCreationContext that is reused across all iterations of the PendingAgentEntities loop. When SpawnEntities eventually calls in ...

SimpleStreamableAssetManager: Memory Bloat/Leak in AssetIndexToBounds4Index

Overview: A report has been received regarding a memory leak that eventually leads to OOM crashes when s.StreamableAssets.UseSimpleStreamableAssetManager=1 is enabled. In projects that utilize this ...

Ending a GameplayAbility from an AbilityTask created by the same GameplayAbility does not correctly end the AbilityTask, and it continues ticking.

When a GameplayAbility is ended from within a child AbilityTask, the AbilityTask is not cleaned up correctly. As a result, even though the GameplayAbility is no longer active, the AbilityTask contin ...

“S” key fails to add key to transform when additive track Is locked

When an additive transform track is locked, pressing the “S” key does not add a new key to the sequence. No key is added to either the additive track or the base transform track. What the user expe ...

MRQ reports missing frames when rendering multiple cameras on a Sequencer camera track with Temporal Sample Count > 1

If there are multiple cameras in the Sequencer camera track, everything works correctly when the Temporal Sample Count for anti-aliasing is set to 1. However, when it is set to 3, the following erro ...

Enabling MobileHDR on Meta Quest 3 device causes intermittent hang in splash screen

Using MobileHDR on an actual MetaQuest device (MQ3 tested) causes an intermittent hang/deadlock in the splash screen. This hang in the splash screen seem to happen maybe 1 in 5 times. The first ti ...

Hard shadow edges appear when using Displacement Fade on a Nanite tessellated landscape

A hard shadow edge occurs when displacement fade is enabled on a Nanite landscape with tessellation. This occurs on the edge between two clipmap levels of the VSM. The artefact can be somewhat red ...