New Post: Formatted sheets creation in Loop

Hi!, I'm working on a page that loads data from a Table in Oracle and exports to Excel, the problem is that, when i format the sheets, it only applies the format to the first 16 sheets in the loop, this is my code:

//font******
$styleArray = array(
    'font'  => array(
        'bold'  => true,
        'color' => array('rgb' => 'FFFFFF'),
        'size'  => 11,
        'name'  => 'Verdana'
    ));
$objPHPExcel->setActiveSheetIndex($current_sheet)->getStyle('A1:AI1')->applyFromArray($styleArray);//fuente

//fill
$objPHPExcel->setActiveSheetIndex($current_sheet)->getStyle('A1:AI1')->getFill()
        ->applyFromArray(array('type' => PHPExcel_Style_Fill::FILL_SOLID,
        'startcolor' => array('rgb' => '00AA00')
        ));

//Border
$styleArrayBorder = array(
       'borders' => array(
             'outline' => array(
                    'style' => PHPExcel_Style_Border::BORDER_THICK,
                    'color' => array('rgb' => '000000'),
             ),
       ),
);
$objPHPExcel->setActiveSheetIndex($current_sheet)->getStyle('A1:AI1')->applyFromArray($styleArrayBorder);

The code loops 125 times controlling the sheet in the $current_sheet variable, however, after the 16th sheet, no format is applied.

The data in the sheets is filled from A1 to O27, maybe a memory issue??} No exception is thrown, and the file gets exported OK, the weird thing is, only applies format to the first 16, Hope you can help me on this matter