We have submitted all our predictions and got strange results on leadrboard 2. For leaderboard 1, we got very good results in both cross validation and leaderboard submissions (AUPR= 0.91 and AUC= 0.76). However, we get good results in cross validation but supper bad results on leaderboard 2, i.e. even 10% worse than a random prediction! It is more strange that before bug we got the second place for leareboard 2 and now the story is completely different. We are confused! any body has similar problem or can guess what is wrong with our predictions? Thanks, - Samad