Problem with formulas

[wolverine4277]

Hi, I'm using your library with PHP v7.4.33 and have a problem assigning formulas to cells.

// Create a new PHPExcel object
$objPHPExcel = new PHPExcel();

// Set some values in A1 to A5 for demonstration
$objPHPExcel->getActiveSheet()->setCellValue('A1', 10);
$objPHPExcel->getActiveSheet()->setCellValue('A2', 20);
$objPHPExcel->getActiveSheet()->setCellValue('A3', 30);
$objPHPExcel->getActiveSheet()->setCellValue('A4', 40);
$objPHPExcel->getActiveSheet()->setCellValue('A5', 50);

// Set the formula in a specific cell (e.g., B1)
$objPHPExcel->getActiveSheet()->setCellValue('B1', '=AVERAGE(A1:A5)');
//$objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow(1, 1, '=AVERAGE(A1:A5)'); // Same result as above line

// Save the spreadsheet to a file
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->setPreCalculateFormulas(false); 
$objWriter->save('example.xlsx');

I understand that this code results in an excel with the formula =AVERAGE(A1:A5) in cell B1 but instead of that the cell B1 have a the text =AVERAGE(A1:A5), not the formula that shows the value 30.

I try with and old versión of the library (version 1.8.0, 2014-03-02) and the same code work fine.
I miss something new to configure in this version?
I need to update to PHP 7.4.33 and I appreciate any help!
Thanks.