Yea .. it was the upper piece of the claw. If you look closely at the picture, you can see the piece of Lexan bent WAY up.
What happened, was when we drilled the holes for the spacers, the lexan cracked a little (little being less than 1cm long). It worked flawlessly for over a month, then it decided to kick the bucket at the competition. Lovely. Thanks again to Team 599, who provided us with a piece of lexan large enough to make another claw piece.
Heres a better picture of the damage:
