I have never had this problem. The only time I have to save twice is if the person's name changes. If I change Bill to John, it will say "Are you sure you want to change this patient's first name?" Click Yes, and "Information on John Johnson is updated." * You must then click on OK to get rid of that window.
Then you must update demographics by clicking in bottom right. "Information on Bill Johnson was updated."
However, you can do it in three steps, after clicking on OK or "x" ing out in the window designated by the asterisk. Not sure if this helps. Anything else, I believe you can just click on update.