Hi there
If you select "print for your records", there will be a watermark.
Additionally, once that link is clicked, a pop-up does appear to ask you if you want to remove blank/unnecessary pages. This is likely why it may look like your return has pages missing.
On the "print for your records" there should be a "continue" button.
This link will take you to the next screen, where will see an option to "print return to mail". This version will generate a barcode for the CRA, and will not have a watermark.
Please reach out if you have any further issues.
Thank you!
Kim