Static Mesh Scene Actor Flipped Normals

UE - Rendering Architecture - Aug 31, 2023

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

Crash when adding foliage instances to unloaded IFA

UE - World Creation - Worldbuilding Tools - Foliage - Aug 31, 2023

Ran into a crash when trying to programmatically add foliage to a large WP level with some unloaded IFAs.  ...

Transient Subclasses of ABrush default to supporting external packaging

UE - World Creation - Worldbuilding Tools - OFPA - Aug 29, 2023

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 ...

Datasmith floods network with UDP traffic in a lab environment

UE - Editor - Content Pipeline - Datasmith - Exporters - Aug 28, 2023

They've had some luck disabling UDP transport as mentioned in the following articles:https://docs.unrealengine.com/5.2/en-US/udp-messaging-settings-in-the-unreal-engine-project-settings/https://foru ...

[AI] BehaviorTreeEditor crash when swapping from Behavior Tree to Blackboard view.

UE - AI - BehaviorTree - Aug 24, 2023

The first time that a Behavior Tree editor window changes from the tree to the Blackboard can cause a crash if you add and remove a key from the Blackboard via a different Behavior Tree editor windo ...

[AI] ZoneShapeComponent does not allow for setting lane profile per point when it is added to a BP

UE - AI - Aug 21, 2023

Adding a ZoneShapeComponent to an Actor BP does not behave as expected. You cannot use the shape as a polygon with per point lane profiles like what is needed for an intersection. When attempting to ...

[AI] BT cooldown decorator fails on initial startup

UE - AI - BehaviorTree - Aug 18, 2023

BT cooldown decorators are failing on starting a game either via PIE or Standalone regardless of the fact their branches have not yet run. This is true for if the cooldown decorator checks its value ...

Lumen causing exposure issues when several viewports are opened

UE - Graphics Features - Lumen - Aug 16, 2023

[AI] Assertion in UAISense_Sight::RemoveAllQueriesToTarget

UE - AI - Perception - Aug 10, 2023

Licensee reports that while aggressively despawning AI there are occasional assertions for attempting to acquire write access to QueriesListAccessDetector when RemoveAllQueriesToTarget is executed f ...

Sound Attenuation settings do not function when Allow Spatialization is False

UE - Audio - Aug 3, 2023

Override Sound Attenuation setting does not work, Sound will play at max volume regardless of distance between source and observer. ...