Unreal Engine Issues
Unreal Engine Issues
BP property initialization fast path does not handle non-instanced properties assigned to default subobjects correctly
UE - Gameplay - Blueprint - Jul 27, 2023Non-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, 2023The 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 ...
In the Anim Sequence Editor set a Notify's MontageTickType to be fixed to BranchingPoint if that Notify is a Native Branching Point
UE - Anim - Gameplay - Jun 30, 2023To avoid confusing users when working with a Native Branching Point Notify set its MontageTickType to be fixed to BranchingPoint. ...
SceneQuery: UWorld::SweepSingleByChannel doesn't return BoneName on skeletal meshes with per-poly collision enabled
UE - Simulation - Physics - Query - Jun 28, 2023Scene queries when encountering skeletal meshes with per-poly collision enabled do not return a bone name in the HitResult. Returning the BoneName always or having it as an option via FCollisionQuer ...
Missing shadows when combining CSMCaching and Nanite
UE - Graphics Features - Shadows - Jun 28, 2023A Nanite primitive casting a CSM shadow on another Nanite primitive with "Cast Shadows" disabled, will have it's shadow disappear completely when r.Shadow.CSMCaching = 1. ...
Cooker Generated Packages: Actors can trigger the "load" of generated packages from linker load and load them incorrectly
UE - Foundation - Core - Cooker - May 31, 2023Generated packages have to be constructed by the cooker via FGeneratorPackage::CreateGeneratedUPackage. Some fields on the UPackage are set and ICookPackageSplitter->PopulateGeneratedPackage is call ...
Variant Thumbnails are washed out
UE - Editor - Content Pipeline - Variants - May 11, 2023I think somewhere in Thumbnail Generator::Generate Thumbnail FromTexture() is applying this washout. ...
DataTable with structures containing TArray and TMap keeps increasing memory while no rows are selected
UE - Editor - Workflow Systems - Apr 18, 2023When using a DataTable based on a structure that includes TArray or TMap, if a row is not selected, the memory usage will continue to increase. This is because in SDetailsViewBase::Tick, ForceRefr ...
A Kinematic controlled vehicle is not rendering correctly when it has a non-identity transform.
There are issues with the vehicles rendered position when it is being moved in a kinematic manner, i.e, forcibly moving a vehicle (not simulating it) using either FChaosEngineInterface::SetKinemati ...
Renaming a variable on a Blueprint will reset that variable's value on any Child BPs
UE - Gameplay - Blueprint - Mar 25, 2023If a variable is renamed on a blueprint, then any child blueprints will lose their default values for that variable and reset to the parent's default value. This resetting only happens with the Chi ...