[Bug?]Variable pointer to UObject are nullified in a class when its child is implemented with Blueprint

Development Programming & Scripting C++
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1

This is not the first time I encounter this behavior.

Variable pointer to an UObject are nullified inside other containers uobject/ucomponent when this conteiner child is implemented with Blueprint.
I’m creating or assigning variables to some UObjects.
But when some functions are then called those variables are nullified.
I put some check to see if those are same containers and they are.

Also class is created with inline editing:

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image911×139 5.45 KB

I have a class ULyraInventoryManagerComponent. Its inheritad by a blueprint child B_LyraInventoryManagerComponent
The constructor of B_LyraInventoryManagerComponent is called saving the name of this class to check if values are comming and are assigned.

USTRUCT()
struct FContainer
{
...
SetOwnerComponent(UActorComponent* inOwnerComponent);

UPROPERTY()
UObject * OwnerComponent;

FString TemdDebugNameComp ;
};

UCLASS()
class ULyraInventoryManagerComponent  : public UActorComponent
{
...
ULyraInventoryManagerComponent();

UPROPERTY()
Container container;

}

Container::SetOwnerComponent(UActorComponent* inOwnerComponent)
{
	OwnerComponent=inOwnerComponent;
	if(OwnerComponent)
		TemdDebugNameComp = GetNameSafe(OwnerComponent);
}

ULyraInventoryManagerComponent()::ULyraInventoryManagerComponent()
{
container.SetOwner(this)
}

But when a function of this B_LyraInventoryManagerComponent is called next time, then this OwnerComponent is NULL but the name stays as it was set in constructor.

2

Use TWeakObjectPtr or add UPROPERTY()

3

It is an UProperty.
Here is approximated pseudocode.