Thank you @susetyo.Michael ,
I found a workaround to this, in fact is not 100% perfect, but works good enought for being playable (I think I’m getting results close to 90% or more, but also depends a little bit on the animation frames, more frames, the better reliability it gets to fire):
If you configure the notifys as AnimMontage Notifys, they will always fire on the server (not on clients) but from there you can make a multicast to all clients telling them that the notify fired and do your logics.
Also, you have to make sure that your character mesh is set up to “always tick” in the option “visibility based anim tick option”
Hope it helps!