When paragraph contains only merge fields (and eventually whitespaces), and all of these fields are evaluated to empty string for particular data record, the paragraph could be removed from the merged document. Example: The document contains two paragraphs: <<FirstName>> <<LastName>> <<Address>> For particular data record, LastName and Address are empty, so the merged document for this data record will contain only one paragraph (the first one). This behavior is expected from customers, as it's implemented by MS Word.