Unreal Engine Issues
Unreal Engine Issues
PCG sampling of RVT does only works when sampling the first texture layer
UE - Graphics Tools - PCG - Components - Dec 11, 2025The logic for selecting a page table texture in FVirtualTexturePageTable::Initialize() uses the indexing for texture layers (index 0-7) to fetch from the page table textures (index 0-1). All RVT for ...
References to Data Assets that inherit from Blueprints may be broken during reinstancing
UE - Gameplay - Blueprint - Nov 30, 2020It is possible to create new Data Asset instances in the editor that inherit from a blueprint-defined subclass of UDataAsset. This flow is not very well supported, and generally it is safer to just ...
Engine crashes when trying to copy a setter node for a GameplayTag variable from one eventgraph to another eventgraph
UE - Gameplay - Sep 27, 2019When trying to copy a setter node for a GameplayTag variable from one eventgraph to another eventgraph the engine crashes. If the blueprint that is copied into has a GameplayTag variable with the sa ...
Sequencer autosorts alphabetically on undo
zComponent - Archive - Sep 8, 2023[Link Removed] Jan Kaluza 2023-09-08 15:37:18 UTC I just ran into a very frustrating bug: I have around 60 actors in a sequence, and I reordered them to be in the order that I wanted to animate them ...
Lumen screen traces from hair cast noising moving shadows on faces
UE - Graphics Features - Lumen - May 17, 2024There is moving blotchy noise on the head and face from hair when Lumen HZB tracing hits hair. CL 33258050 fixes the noise in the hair, but tracing still hits hair when it starts from surfaces like ...
Foot Placement tries to step on vertical surfaces
UE - Characters - Animation - Oct 31, 2023From a community member: Are you responsible also for the FootPlacement node? Its fantastic, but there is a possible bug with the walkable surface handling. It tries to step even on vertical surfac ...
Many native-only interfaces incorrectly appear as implementable by blueprints
UE - Gameplay - Blueprint - Sep 14, 2020Right now, any UINTERFACE that is not marked as CannotImplementInterfaceInBlueprint is shown as implementable in blueprint. If these functions have BlueprintCallable functions or related things then ...
Get and Set nodes for variables from a BP's parent class will not compile without a reference to Self (4.8)
UE - Gameplay - Blueprint - Jan 20, 2015Get and Set nodes for variables from a BP's parent class will not compile without a reference to Self. Without one, the BP fails to compile with the following error: "Error Variable node Get NewVa ...
Get and Set nodes for variables from a BP's parent class will not compile without a reference to Self
UE - Gameplay - Blueprint - Jan 9, 2015Get and Set nodes for variables from a BP's parent class will not compile without a reference to Self. Without one, the BP fails to compile with the following error: "Error Variable node Get NewVa ...
Regression: FAnimInstanceProxy memory leak when BeginDestroy() called on UAnimInstance before USkeletalMeshComponent
UE - Runtime - Animation - Feb 10, 2025In UE 5.5, the fix applied by CL 36529858 in ue5-main updated USkeletalMeshComponent::ClearAnimScriptInstance() to call AnimScriptInstance::UninitializeAnimation() on the animation instance. This, i ...