I specifically meant the scenes with Lucia, and I figured it out eventually.
I think the automatically triggered events may be interfering with each other, because I never got the text from her to meet in the hot springs, but she was there anyway and I could start her story.
Similarly, I can't buy Peni, even though Nia and I raided the strip club. Supposedly she should be available the next day, right? But there isn't an option to buy her and I think it's because another event happened as soon as I woke up.