got a similiar problem. I respawn everytime as bandit (I guess it's the bandit skin) and my stats are all zero. when I log out and log in again, I get's again full blood, and 0 in every other statistic. So even if I get hurt and got (for example) 50 zombie kills, I restart the game, and got full blood, 0 humanity, 0 everything. but my stuffs stays in my backbag (it doesn't disappear). Since 1.7.2.5.