Q: Photo stream stopped uplaoding even though the album is not completely uploaded.

So, I just uploaded an album on iPhoto and it has 926 pictures, I then shared that on photo stream with 8 people but for some odd reason, the photo stream stopped uplaoding at 846. And no matter how long I let it run, it just doesn't upload anymore. The selection of photos not uploaded also seems very random. All the pictures were taken with the same camera and all were in JPEG. Some random pictures just does not uplaod. I tried deleting some pictures off of other photo streams to accomodate for the 1000 pictures per day mark, but the Photo stream has been created like 2 weeks ago and it still just stays at 846. Can someone please help me?