Originally Posted by
Valence
Dying before a LB resolves is pretty common and depends whether or not you're still alive after the animation and resolution delay. Stuns and MoN seem to specifically achieve the same result only under extremely tiny, uncommon circumstances (and I have yet to find a stun actually doing this, so far I've only seen MoN).
Also worthy of note but actually working against MoN there, MoN is such a disruptive ability server side that it introduces extreme wonkiness on actions that should lock you in place. For instance, if you get MoN-ed during a Contradance, it will allow you to move around while casting it where it shouldn't be possible. It's very funky how this ability seems to break half the game. Edit: this works on Meteodrive and Spite too, and I haven't tried it but it would make sense that it also works on Chocobastion, Mesotes and other long ass LBs.