I currently have one problem. When milking in a ranch, an error appears and milking is not possible. It seems to be because there is no illustration with a milking machine in the megaboob state. And this is a suggestion, but can't we make the mega boob and cock grow into skills as well?
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Related bugs currently found are that the game stops when milking in that state, and that only clothes are on top of the body when you put on clothes in that state. The latter requires a new illustration for almost all outfits, but I think the former is a problem that can be solved.
Also, not all outfits have this bug. Some outfits, like sleeveless, don't reflect the mega boob's size, but they are dressed normally.