Aperture deleting my Facebook albums

I was pleased that the Aperture 3.1 update fixed a lot of bugs related to Facebook, however it seems to have introduced a new bug. When I started Aperture after the update, it brought in all my Facebook albums (about 10 of them), however one of the albums was empty. I went on Facebook to see that this album still existed but was also empty. It seems that Aperture deleted the contents since there were obviously pictures in it before the update. I created a new album in Aperture and uploaded it successfully to Facebook. The photos stayed intact until the next time I opened Aperture after which it deleted all the photos again. I repeated this 5 times before giving up. It only affected the one previous album (seemingly random) and any new albums I try to create. I've since disconnected Aperture from Facebook and only upload through Safari. Anyone seen something similar?