There were blunders in the first round of games. I remember this vividly because I went through all the games with the exact same version of Stockfish with the

There were blunders in the first round of games. I remember this vividly because I went through all the games with the exact same version of Stockfish with the same time controls and it thought some of its own moves were blunders. This is partly why people were so puzzled by the setup that led to this.