The last piece of a generated PDF always gets a page of its own, even when it is small enough to fit on the page before it. The result is an extra, mostly empty last page to print. Seen in the Optimized cutting mode, and it may happen in the other modes too (Even, Precise, room mode).
Expected: if the last piece fits in the free space left on the previous page (inside the margins and spacing), it goes on that page instead of starting a new one. If it doesn't fit, it gets its own page as it does today.
Test image: Sirens_Shore.jpg

Last page of PFD as example