I had a problemwithaccentswhenusingaddParagraph .
there wasa doubleutf8 encoding.
I fixed theproblemby changingline660of phpdocx_pro / lib /dompdfparser/ include /parserhtml.cls.php:
$aDompdfTree['nodeValue'] =utf8_decode($node->nodeValue);
it works for mebut Ido not knowif the problemcomes fromphpdocxorphp
I hopeitcan help you