I am having the same problem. I cannot upload photographs - it looks like it is uploading and then brings up the last photograph I added to the website.
We tested this and did not see any issues. Since there are several places where you can upload pictures, please give us more details so that we can replicate the problem. Were you signed in as administrator? Did you pick the "Upload Photos" option from "Photos" in the menu or did you click upload photo from the Album or from the family view of a person?