have you tried looking at the objectives of the round..
because it might be saying to sit or shake or jump etc etc
if it does say lie down why dont you try making your dog forget the trick and learn it
again
I HOPE THIS HELPED YOU!!!!
=P

BECAUSE YOU HAVE TO LISTEN WHAT TRICK IT WHANTS YOU TO DO

AND BY THE WAY DO YOU KNOW HOW TO GET THE GOLD BAR?

somtimes you hav to do it for a sertain amount of time

You have to look at the order the tricks you have to do are in. You can't just tell your
dog to lie down when you see lie down in the row with other tricks!

Hope I helped! :)