Logging out and then logging in as a new user results in slate creating multiple Slate User IDs

UE - Gameplay - Input - Jul 28, 2023

I believe this is happening because when you change your logged in user, the Slate Application will automatically create a new second slate user with an ID of 2. This is bad because the Slate App is ...

BP property initialization fast path does not handle non-instanced properties assigned to default subobjects correctly

UE - Framework - Blueprint - Jul 27, 2023

Non-instanced object ref properties are incorrectly being skipped at property initialization time when Blueprint class instances are spawned with the fast property initialization path enabled. This ...

NiagaraComponent attached to the character won't stay active when travelling to a new level using seamless travel

UE - Niagara - Jul 27, 2023

The pawn character is added to APlayerController::GetSeamlessTravelActorList, so it'll be persisted during server travel. The Niagara component is spawned during BeginPlay and activated manually. W ...

WorldPartitionRenameDuplicateBuilder rename breaks soft object refs

UE - World Creation - Worldbuilding Tools - World Partition - Jul 26, 2023

Renaming map using builder will break soft obj refs and warnings will also appear in the log: Warning: Serialized Class /Script/Engine.World for a property of Class /Script/Engine.Actor. Reference ...

Console history in packaged game is not saved

UE - CoreTech - Jul 25, 2023

Console history is saved correctly in 5.1. The cause is input.ini in EnhancedInput and InputDebugging added in 5.2. Removing these files are a work around. ...

FMaterialResource::IsDualBlendingEnabled bug

UE - Rendering Architecture - Materials - Jul 24, 2023

The user has a proposed fix for this in the case. FMaterialResource::IsDualBlendingEnabled needs the following modification that includes MaterialInstance check: bool bMaterialRequestsDualSourceBle ...

Cull Distance Volumes don't work with WP

UE - World Creation - Worldbuilding Tools - World Partition - Jul 19, 2023

Level instance edit mode changes actor transforms

UE - World Creation - Worldbuilding Tools - Level Instances - Jul 18, 2023

When breaking a level instance, foliage instances in the LevelInstance are placed in the wrong location

UE - World Creation - Worldbuilding Tools - Level Instances - Jul 8, 2023

Following code works as a work around. The code updates placement information of instances. TMap<UFoliageType*, TArray<const FFoliageInstancePlacementInfo*>> AInstancedFoliageActor::GetInstancesF ...

Compatible Skeletons: Support additive animations with different skeleton for additive base

UE - Anim - Runtime - Jun 30, 2023

See linked UDN for details: [Link Removed] ...