Having trouble getting instanced objects in viewport to execute blueprint code on updates.

[andyvyking]

I’m trying to get instanced objects in the editor viewport to execute Blueprint code when I modify their details. Specifically, I’m changing a Dynamic Material Instance at runtime, and would like the changes to appear in the viewport.

I have PostEditChangeProperty call a Dynamic delegate that the object blueprint is hooked up to. But the blueprint code doesn’t appear to execute.

I’m seeing the C++ logs, but not the bp printed string. Any idea why?

Header:

#if WITH_EDITOR
	virtual void PostEditChangeProperty(struct FPropertyChangedEvent& InChangeEvent) override;
#endif // WITH_EDITOR

	UPROPERTY(BlueprintAssignable)
	FOnEditorUpdateDelegate OnEditorUpdateDelegate;

Implementation:

void UTP_WeaponComponent::PostEditChangeProperty(FPropertyChangedEvent& InChangeEvent)
{
	UE_LOG(LogTemp, Warning, TEXT(__FUNCTION__));

	OnEditorUpdateDelegate.Broadcast();

	Super::PostEditChangeProperty(InChangeEvent);
}