Thank you for the question! In the initial phase for the prediction leaderboard we will be scoring a file that describes the x, y, z function of each agent at the end of simulation. The starter notebook outputted 7 columns, which are important however only the x, y, z function of each agent at the end of simulation are scored. To be clear, for initial prediction submission we’re expecting a file with 3 columns.
We’ll update the starter notebook to reflect this, thank you for raising the issue.