iOS X Yosemite, iPhoto 9.6, Facebook albums with more than 25 pictures

I have linked my Facebook albums to iPhoto. I started using iOS X Yosemite and iPhoto 9.6 a couple of days ago. Now when I select in iPhoto any Facebook album with more than 25 pictures, it automatically removes all pictures after the 25th picture. However, the pictures remain in Facebook but I want to view them in iPhoto. How can I retrieve them?