UActorComponent::RemoveUCSModifiedProperties

function Engine Since 4.0

#include "Components/ActorComponent.h"

Access: public Specifiers: ENGINE_API

Description

Removes specific properties from the component's UCS-modified property list, indicating those properties should no longer be treated as UCS-overridden.

Caveats & Gotchas

• Removing a property from the UCS-modified list allows it to be overwritten by subsequent Blueprint instance data or archetype reloads — use with care in live construction script pipelines.
• Properties not present in the current UCS-modified set are silently ignored — no error is raised for entries that do not exist.

Signature

ENGINE_API void RemoveUCSModifiedProperties(const TArray<FProperty*>& Properties);

Parameters

Name	Type	Description	Default
Properties	const TArray<FProperty*>&	The list of properties to remove from this component's UCS-modified property tracking set.	—

Return Type

void

Example

Strip specific properties from UCS tracking during reinstancing C++

#if WITH_EDITOR
// Called during component reinstancing to unpin properties that are no longer UCS-driven
void UnpinProperties(UActorComponent* Comp, TArray<FProperty*>& ToRemove)
{
	Comp->RemoveUCSModifiedProperties(ToRemove);
}
#endif

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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