I'd like to start out by saying that I really enjoy this game, but it definitely has quite a few bugs in it. I admit I've made changes such as downloading user animals and changing the max guest capacity to 440, but it seems that when I return to a saved game, animals will be completely displaced (2 or 3 exhibits over from where they should be), some guests are in the exhibits (I think they fall out of the sky tram), and most recently the sky tram stopped letting guests off the tour entirely (this was actually entertaining as every one of the guests stats were red. To fix the last thing, I closed the zoo and the skytram, closing the sky tram didn't do anything so i had to delete each car one by one, and move the people to the paths manually.