Lilac Diesel Auto flower

I put the seed in glass of water 1 day, keep the glass in the dark place and after that I put it in the soil 👌 wish all of them grow up strong and heathy - 23 Sept : 2 seeds doing very well, but one of 3 seems no sign of life, I check in the soil and that seed and found it completely no sign of life and it's looks dry and die... goodbye