Blueprint property value missing at packaged project

Development Programming & Scripting
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1

The value is right at editor or PIE .

The value of this property is created and stored using the NewObject。

The code is as follows:

UCLASS(Blueprintable, BlueprintType, Meta=(ShowWorldContextPin))
class XXX_API UMyModuleBase : public UObject
{
	GENERATED_UCLASS_BODY()
	public:
		UPROPERTY(BlueprintReadWrite)
		bool IsTriggered;
}

USTRUCT(Blueprintable, BlueprintType)
struct XXX_API FMySection
{
	GENERATED_USTRUCT_BODY()
	UPROPERTY(Instanced, EditAnywhere, BlueprintReadOnly)
	TObjectPtr<UMyModuleBase> Module;
};

USTRUCT(Blueprintable, BlueprintType)
struct XXX_API FMyTrack
{
	GENERATED_USTRUCT_BODY()
public:
	UPROPERTY(EditAnywhere, BlueprintReadOnly)
	TArray<FMySection> SectionArr;

public:
	FPIGamePowerTrack Clone();
};


UCLASS(Blueprintable, BlueprintType)
class XXX_API UMyGA: public UGameplayAbility{
	UPROPERTY(EditAnywhere, BlueprintReadWrite)
	TArray<FMyTrack> TrackItemArr;
}

Example:

I have a blueprint inherited from UMyGA, Name BP_MyGA.

BP_MyGA
--TrackItemArr[1]
	--SectionArr[1]
		--Module  (editor/pie value is valid, but is NULL in packaged project)