Hmm it really looks like some kind of bug.
It says bandit receives 47 dmg to the body -> mail hauberk is destroyed.
then:
Bandit receives 11 dmg to the body -> mail hauberk is destroyed
After that the 230 dmg follow.
So the Mail gets destroyed twice, which obviously should not be.
I never experienced this before and maybe its some kind of weird bug with the nine lives perk.
Please report that to the bug forum (if you didnt do already). The Log file would be helpfull as well.
Unfortunately our programmer is away for a few days, so we cant look into it right now :( But we will take care of it as soon as possible.