For the latest public patch (0.9.110), the busts for Chia, Yzi, and Bixia do not appear in their scenes or in the gangbang and are still using the generic placeholder, nor do they seem to be in the gallery. This also happens to Niddhy's nude bust, if she has one, because during her sex scenes her normal bust is replaced with the generic placeholder which is missing from the gallery as well.
