If you can get the stargazing scene after the bite scene, then that's definitely a fuckup from full release, the devnotes fully state that this scene works around the fact he's thinking of biting you later. It's supposed to be a direct tie-in with the bite scene, this is the description for that scene:
"Astartion starts the dialog lying on his bedroll, looking up at the stars. He's somewhat pensive, reflective, thinking that he might lose the ability to walk in the sun - even if it means ultimately saving his life. He gets up and is complImentary towards us, but he gets uncomfortably close and his compliments have a hungry feel to them. Really he's thinking that later tonight he'll come back and drink our blood. He excuses himself, but he's sure that tonight's the night he's going to feed.".
IIRC, in EA it wouldn't trigger if the bite night had already happened, but I might be misremembering here. (Also, the file's called "Night3" which I guess means their design was for Astarion to reveal his vampirism quite early?)
Also, if you say the order is the same, then what do you mean by the extra cutscene where Astarion offers to keep watch? Do you just mean the conversation in front of the boar? In EA bite night fully relied on that conversation happening (or at the very least, fully relied on Tav noticing the boar and commenting on it in party banter)
