Hello,
No, you just need to download and use the new package available to download on MY PHPDOCX page. All users that are using the new package have checked the problem has been solved with all versions that have been updated (MS Word 2019, MS Word 365 and MS Word Online). Also all tests we have done are correct as well, and the included samples generate correct outputs in all cases.
Please check you are using the new package and not an old one and your server isn't caching the code you are running. Also please run one the included samples, such as Layout/createListStyle/sample_1.php and check its output.
If you send to contact[at]phpdocx.com a sample DOCX output you get we'll check it.
Regards.