Hello,
BlukProcessing works with CreateDocx::$returnDocxStructure internally, setting it as true and false to load the template as in-memory document automatically and work with WordFragments. After using that class, if you need to keep using in-memory documents you need to set it again:
CreateDocx::$returnDocxStructure = true;
We move the request to the dev team to keep the initial value if it was already set as true.
Regards.