The problem occurs as follows: PHP is generating DOCX correctly, does not generate errors or exceptions; however, when opening DOCX (in Word 365), only the first 2 pages are displayed (the complete document contains 9 pages); so that we can see the complete document, it is necessary to execute Save As ... and when opening the new saved file, the system displays the 9 pages correctly; the original file is 31 KB and the saved file (with the Save As option) is 36 KB. Are there any bugs in the generation of native DOCX?