I have looked thoroughly for an answer/fix to this and cannot find one. http://forums.adobe.com/message/4326179#4326179 did not work.
I hit 'Publish' to upload new photos. It goes like normal and then when done comes with, "(Error) Photo upload failed, but no error sting was returned from facebook." I hit 'OK.' Then another error comes up, "(Warning) Can't update this collection. Photo upload failed, but no error sting was returned from facebook."
It used to come up with this and be able to upload some photos, and I would have to keep doing this until are were uploaded. Now, I have 4 photos to upload and have tried for about 2 weeks just publishing. I will also have more photos to publish soon.
