Alice quest is not bugged, is just that the continuation hasn't been implemented yet. Right now it ends when you decide to either share or not at the club. All 3 scenes from both routes and the Halloween event are repeatable.
In regard to Katarina, no, reloading a save doesn't break it, you need to have sex with her at the terrace 3 times before arresting Mario, otherwise she is still not fully seduced and will say you ruined her life and that will end her interactions, same if you dont seduce Emma and arrest Mario.