PhpWord: how to display a table correctly?

Question

phpspreadsheet

You need to put the table in the doc-file template. The table is taken from the database, where it is stored as html ($html_table).
the code:

$templateProcessor = new \PhpOffice\PhpWord\TemplateProcessor('tempatename.docx');
$wordTable = new \PhpOffice\PhpWord\Element\Table();
$wordTable->addRow();
$cell = $wordTable->addCell();  
 \PhpOffice\PhpWord\Shared\Html::addHtml($cell, $html_table);
$templateProcessor->setComplexBlock('html_table', $wordTable);
$templateProcessor->saveAs($pathToSave);

It all works.
But if the table has cell unions (the colspan and rowspan attributes), then the table is built without taking them into account, as if they do not exist. In the end, everything is crooked.
What can be done here?