Photostream folder in Aperture not working properly
I'm having problems with Photostream in Aperture...everything worked great for months but just the other day while importing some pics, photostream stopped syncing with my newly imported pictures. Half the pictures didn't make it to the Photostream folder in Aperture and therefore aren't synced with my other devices. Now of course, none of my newly imported pictures can be found in the folder. Interestingly enough, a picture taken on my iPhone or iPad appears in the folder in Aperture and across my Photostream enabled devices. I checked all the boxes...everything is enabled. It just stopped in the middle of sync.
...and if drag a pic into the folder, photostream syncs for a while but nothing shows up in the folder.
MacBook Pro, iOS 5.1.1