For come strange reason Photo Stream randomly choses which photos to sync instead of syncing all of them. Last week for example I took 30 photos and only 24 of them went to Photo Stream. The only reason I can think of is if Ive left the house before all the 30 photos have been synchronised as they would only sync when there is wifi, but if that is the reason the process should have completed once I was back in the house and connected to the wifi. Has anyone experienced that before?