Project in export in corrupt Pdf in Corel Draw 2018

Dear boys,
I'm struggling with a display problem after running normal export in Pdf format.
The document that counts 12 pages once exported to Pdf just does not make me visible the last 2 pages that are tickets and graphics works citing the error to a reduced section of the character ... this may be true?
Or is a file or Plug In missing?
How can I get around the problem?
The program version is 20.0.0.633
Waiting for your kind answers, I thank you in advance
Dodago ;-)

  • it's not easy to find an answer without see the file content. If you want, feel free to send me the file to ariel.garaza@gmail.com 

    Have you tried another PDF presets such as PDF/X-3 when Publish as PDF?