I'm really confused about when the game runs calculations to update [your friend]'s weight. I haven't paid attention to this before the current patch, so I'm not sure if this is a result of new breakage, old breakage, or I just don't understand how the system works.
In my current save, she was 400kg a couple years ago, now she's 650kg. Her weight doesn't seem to update between days, so maybe it only updates every year?
I'm starting to get nervous about her health (but I can't see her vitals like the MC so I can't tell), and I have no idea if the game has a failure condition on her weight going too high upward. Her weight seems essentially the same between days, so I can't tell if weight loss pill gifts or gym visits have any effect. I'm trying to solve this problem without discontinuing her meal subscription service.
I already maxxed out her bust size with magic milk on a previous patch, so I haven't tested if magic milk works on this patch.
(As an aside, when I first started the interactions with [your friend], I was initially trying to feed her the bust reducing medicine that I had developed, but I guess the dialog and narration is written to assume that she's well-endowed.)