Hey,
How long has this been going on for you? Up until this week, when I added a new item to my Favorites list, it would be on the last-most page, but now, as you say, it's a complete jumble. Did something change this past week? If so, I'm seriously thinking about NOT using my Favorites list anymore.
I thought I had accidentally done something when my cat jumped on the keyboard, but now that there are other people experiencing this, I know I'm not alone!
Somebody has to know a way to fix this.