There's a problem when you tie the monster token to the character sheet of that monster. when you are in combat and there's more than 1 of the same monster tied to a monster stats, effect the rest of the tokens. so say for example. when you hit a monster in combat and you have the HPs tied to the monsters stat sheet, the rest of the tokens HPs would change with it. when you hit giant #1, and deduct HPs from that token, Giant #2-6 would be changed by the same rate as Giant #1. I really hope this makes sense... if its not a bug i'd really like to find out how to separate each monster tokens from the stat sheet.
