It seems like as soon as I fix a bug a new one arises. So for example I might have fixed it where a zookeeper will go into a habitat to feed and clean, but then another habitat becomes unreachable. Bugs just keep popping up off and on. Some just continue to be there. I also did what people told me, but it either does or doesn't work or it works for a bit and goes back to being buggy. Sigh...it's a real headache. I've have no idea what's going on with this game.