BUG. Editor hanging when I load a table using fobjectfinder

there is construcor of actorcomponent

ULootComponentBase::ULootComponentBase()
{
	PrimaryComponentTick.bCanEverTick = true;
	static ConstructorHelpers::FObjectFinder<UDataTable> Table_BP(TEXT("DataTable'/Game/Release/Blueprints/LootGeneration/DT_LootProfile.DT_LootProfile'"));    
	UDataTable* LootDataTable = Table_BP.Object;
}

when i start debugger in DebugGame Editor mode, project loading hangs at 70%
(there is no debug points, just hanging at all).

If i delete strings with loading of datatable, everything works ok.

Structure of datatable is

USTRUCT(Blueprintable)
struct FSTLootProfile : public FTableRowBase
{
	GENERATED_BODY()
	UPROPERTY(EditAnywhere, BlueprintReadWrite)
		int SpawnPriority;
	UPROPERTY(EditAnywhere, BlueprintReadWrite)
		ELootSizeTypeEnum LootSize;
	UPROPERTY(EditAnywhere, BlueprintReadWrite)
		TSubclassOf<AActor> ActorReference;
	UPROPERTY(EditAnywhere, BlueprintReadWrite)
		FDataTableRowHandle Row;

	FSTLootProfile()
	{
		SpawnPriority = 0;
		LootSize = ELootSizeTypeEnum::LootShort;				
		ActorReference = nullptr;
	}
};