Wow nice set up going aero for autos.
Unfortunately, this is the downfall of autos IMO. You have 3 species of cannabis competing for dominance for genetic expression and sometimes you get mainly ruderalis genes which is what appears to have happened with the second let dense plant..
that’s assuming that you had enough light intensity and proper PPFD, nutes, etc.. but genetics can be a roll of the dice and with autos it’s even more likely to get a shitty roll.