I've been kind of out of the loop recently...did the reply tool go away, or have I accidentally done something that made it stop working?
Topic on Talk:Talk pages project/Replying/Flow
@Valereee: Definitely didn't go away, I've been using it today. Something is probably going wrong on your side.
@Valereee: Did you probably turn it on using the cookie hack/using a user script? If yes, that method is no longer supported, you should turn it on in your preferences instead.
Ah! Yes, I was using a contraband version lol!