Alternating stones bug?

http://online-go.com/game/915021 there seems to be a glitch, when I analyze this game at move 6 using alternate moves, all the stones are played as black. I think it has something to do with the fact the game has 11 handicap stones to start?

Hm, the move numbers are messed up too. Both (numbers and stones being played) is back to normal - at move 11. So i bet on the handicap as well.