If you lead a wing from promenade position, she will have to close to you during the wing, so she will 'roll' her body against yours in opposite direction than when opening to PP + both of you are turning the body to the left because she is taking the steps around you. In addition to this, she will also slip towards your left side during the wing, so you end in left side to left side body connection (hard to describe this accurately because there are several things happening at the same time and also, I don't dance much ballroom recently, so maybe someone can give better description). You have to control this and maintain the frame, so she doesn't go too far to the left. You can also use some shaping of your body to the right (although the figure is defined without sway), not just to make a bigger shape, but it will help you to maintain the contact with the partner over the left side and counterbalance her movement (just make sure you are doing that by extending the left side and not by just collapsing to the right)
During the first step of the following figure (outside partner), it may happen that you lose a contact with a partner for a moment, there is actually nothing very wrong with it (it happens even in some videos were this figure is shown), but take care to maintain the strong left side, don't collapse your body when you make this step, and return to normal right to right side connection after the step