Problem with "join" feature when creating topworksheet (Visual Editor)

Is there any solution for the unrelated objects not to be matched together when the correct answers are shown? For example, in the attached exercise the clown, the baby, the girl sitting on the chair and the girl on patin skates are not supposed to be matched to any names (they are distractors in the listening exercise), but somehow they are matched together when the answer key is revealed, which confused my students a lot.