ISSUES/BUGS with Dine Out

I haven't really had to many issues with this pack. Every once in a while a sim will stand up and dance or go to the bathroom but mostly sims stay seated at their table. I keep my sims talking to help keep them seated. Wait times at the tables have not been bad. However I have added an extra chef station so that there are two chefs. They are pretty good at picking up dishes. A couple times I picked them up off the floor but that was it. I have not ran a restaurant yet so I don't know if I will run into any issues there. Also I am only using the restaurants that came with the pack. I have noticed that sims are not using the bar at all. Sometimes a child will come in with another family then his or hers. Haven't seen any waiters at any restaurant drop the food. I have seen all staff always are working hard. They all seem to be very skilled but again I am not running a restaurant yet. There was one thing I wasn't sure why but I had a group of 8 and they all ordered a dish. When the waiter came with the food, 2 sims were missing their food. The other 6 got their food. I had to reorder for the other two and then they finally got their food. Also I don't know why when your sim orders only a water why it takes the same amount of time to get it as it does a meal. Don't understand why so many are having these issues when others are not. Hope they can fix this for you guys.