Ottum Trait Targets Dead Creature

Sometimes when my Ottum hits a target and kills it on the first blow, no additional attacks happen. I believe this is because it’s trying to target the same creature, and since it’s already dead it fizzles. (If I hit a creature and it lives, the 2 hits can nail the target again.) It seems more intuitive to me to select a target after resolving the first hit based on how the trait reads, if you want it to potentially fail if you kill in the first blow, I would recommend a potential reword to make it more clear to the player.