It's the unlock of Estradiol and once unlocked bought one and used one on her. That seemed to lock me in the CG's until I used one everyday for a couple days till it all played out. Then it continued to say interact with ako but nothing happened until you use that tempfix. Then next day the new bodyframe event triggered. Hope it helps trying to find the cause.
I also tried to replay it from an earlier save. It works fine if you don't use the Estradiol on her - events just continue to work. Not sure what exact combination causes it. I think in my first playthrough I just used all 5 capsules on her in one day? Maybe that broke something. No idea.