FObjectReader/Writer with Transient issue

Development Programming & Scripting C++
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1

Hi all. I have strange issue witt save/load using FObject(Reader/Writer). I have simple structure:

UCLASS(Blueprintable)
class USkillFeature : public UObject {
	GENERATED_BODY()
public:
	USkillFeature() = default;	
protected:
	UPROPERTY(Transient, VisibleAnywhere)
	USkill* Skill = nullptr;
};

Save/Load process is folowing:

//Save
                       TArray<uint8> InBytes;
                        FObjectWriter Writer(Obj, InBytes);

...
//load
                        auto tmp = Cast<UClass>(Obj)->GetDefaultObject();
			if (tmp->IsA(USaveInstanced::StaticClass())) {
				Obj = DuplicateObject(tmp, tmp->GetPackage());
				
				TArray<uint8> InBytes;
				InnerArchive << InBytes;
				FObjectReader Reader(Obj, InBytes);

When I load this class I have following exception here:

	#if USE_CIRCULAR_DEPENDENCY_LOAD_DEFERRING
			if (ULinkerPlaceholderExportObject* PlaceholderVal = Cast<ULinkerPlaceholderExportObject>(ObjectValue))

image
image1154×205 28 KB

But I put Transient for that field. It has to be ignored in save/load process. In rare cases when save load works this property is loaded from save file. So seems like Transient do nothing in my case. Debugging haven’t helped yet.

This workaround works, but I don’t like to implement it for any internal object reference in all children

inline void USkillFeature::Serialize(FArchive& Ar) {
	Skill = nullptr;
	Super::Serialize(Ar);	
}

What I’m doing wrong? Thanks!