Delphi XE5 DBXJSon TJSONArray leak

Question

Im refreshing DBXJSON TJSONArray in timer loop , but i detect that my algorithm leak memory im supect that im not using in the right way the library. whats its wrong here?

I need to reload the Array COMANDASTOT , this array its used by others threads who use them to replace data and get data.

The Idea is UPDATE the infomation stored in TJSONArray, but when i Update the Array this start leaking

Thanks!

uses ....

var
 COMANDASTOT:TJSONARRAY;
 ROOTCOMANDAS:TJSONOBJECT;


procedure tmain.FormCreate(Sender: TObject);

 RespContent: TMemoryStream;
 s, id, strd, et: String;

 LValues, pedidos: TJSONArray;
 LJson, Comand: TJSONOBJECT;

 LValue, pedido: TJsonValue;

 F: TextFile;

 RC: TRESTClient;
 RR: TRESTResponse;
 RQ: TRESTRequest;
begin


try
        // USING TRESTCLIENT VCL TO GET JSON OBJECT FROM CLOUDSERVER

         RC := TRESTClient.Create('https://cloudorders.example.com/getorders?id=3456);

          RQ := TRESTRequest.Create(RC);

          RQ.Execute;

          RQ.Response.RootElement:='';

     ROOTCOMANDAS := RQ.Response.JSONValue as TJSONOBJECT;

    if not DirectoryExists('htd\resto\orders') then
      CreateDir('htd\resto\orders');



    if DirectoryExists('htd\resto\orders') then
    begin

        // SAVING JSON DATA TO DISK 

       assignfile(f,'htd\resto\orders\process');
       rewrite(f);
       writeln(f,RQ.Response.content);
       closefile(f);                     }

    end;

    Comand := ROOTCOMANDAS.Get('data').JSONValue as TJSONOBJECT;

    ETAG := Comand.GetValue('et').Value;

    COMANDASTOT := Comand.Get('d').JSONValue as TJSONArray; // <<- ARRAY LOADED FIRST TIME

    COMANDASTOT.Owned:=false;



 RQ.Free;
 RC.Free;

except
  on E: Exception do
  begin


    Memo1.Lines.Add(ahora + 'Error Loading JsonArray: ' + E.Message);



   end;
   end;
 end;

 Procedure TMain.Timer1Timer(Sender: TObject);
 begin

     // Called each 30 sec. Other process change the file

        If DataChange then
             ReadFromDiskJSON;


  end;


procedure tmain.ReadFromDiskJSON;
 Var
 fs:tfilestream;
 orders,MD5s:string;
 COM,ljson:tjsonobject;
 begin
  try

   while NOT FileCanBeOpened('htd\resto\orders\process') do
   begin
     sleep(100);
   end;

   fs := TFileStream.Create('htd\resto\orders\process',fmOpenRead + fmShareDenyWrite);

   orders := ReadStringFromStream(fs);

   COM := TJSONOBJECT.ParseJSONValue(orders) as TJSONOBJECT;

    LJson := COM.Get('data').JSONValue as TJSONOBJECT;


    /// THIS SENTENCE LEAK MEMORY 
    ///  Why??????

    COMANDASTOT:= LJSON.Get('d').JSONValue as TJSONArray   ; // <<<-THIS LEAK MEMORY!!

    COMANDASTOT.Owned:=false;

    com.Free;
     fs.Free;

    except on e: Exception do
   begin
     memo1.Lines.Add(SNow+' Error ReadFromDiskJSON'+e.Message);
     fs.Free;
    end;
    end;

   end;