I'm not sure if anyone else encountered the same issue.
I'm probably at my 4th/5th night and Astarion never came to visit my character while he's asleep for his big reveal. What happend instead is that I had the fist dream of the tadpole which lest Astarion talk about Cazador, even if he doesn't explain much since we are not supposed to know about him. (There were previous mentions of Cazador as if my player was supposed to know about him but nope.)
Anyway after I persuade him to talk about his dream, I can interact with him and I will get a dialogue where he confess his true nature... The problem is that the other characters don't react to this big reveal as they are supposed to, nor is Astarion asking to use his special power. And well, I didn't get to let him do as he pleases either which is kinda sad, lol.
Is there a way around this? Will he still visit at night? Is it because my character is a drow and doesn't sleep that Astarion doens't visit? So many qestions, sorry!