Ksudoko print to fill the page problem


I’m using Ksudoku to print four puzzles on the same page so that I’m going to spare some paper and I’m doing this choosing the print to pdf function. Unfortunately, this is not working, the application seems stuck doesn’t matter how much time I wait and when I close it it finally creates a pdf output that has only one puzzle in the page. I’m sure this feature worked once on another PC of mine and I’m using the same paper layout (A4).