That's literally the suit hiding part of the model. The chest sticks out the exact same distance as the one on the right. Anyway it doesn't even matter. It's not like I do anything with fashion anymore anyway I'm happy with what I have.
It's just annoying that they shifted from using the default female model to literally just using what you're on. I figured I'd post the suggestion to let people swap incase there are people who want to swap between models since if I'm thinking this there are very likely others.
EDIT- as to your edit. You are a cast, that's an entirely different model to humanoid. Which is why it likely still pulls up default models for you going between sexes.