Heyhey, it seems I found a bug (or at least I don't find a way to progress).
I'm currently on the quest "Al labout the kids" where I need to "come to the third session!" with Astrid but I already concluded the quest "Attendance time" completely (thus the objective "Come to the third session?" as well).
Did I lock myself now or am I missing something? Talking to everyone doesn't seem to give me an option for an "optional" forth session with Astrid.
Regards, Adrian