I am using libreoffice to convert .pdf file into .docx file using this command:

libreoffice --infilter="writer_pdf_import" --invisible --convert-to docx PATH_TO_PDF --outdir OUTPUT_DIR

I am able to open the .docx file in Office365 or Libre Office but after ~1 minute of loading the entire file looks like this:

I expect the .docx file to work as intended.