When a user is in the conversation builder and adds a multiple-choice button. He/she gets the option to forward the chatter to a team, a module appears with a drop-down list from which a team can be chosen. It always assigns the first team on the list. If this first team is the team that you want the conversation to forward to, you will have to choose another team, save your changes and then choose the team that you want. If these steps are not followed, it will visually look like the 1st team is assigned to receive the conversation. But this is not the case, the team has actually not been chosen.