the plant two to the right of the dead growth plant has a pretty big black spot on it. i can't tell what it is from the photo.
the plant above and just to the right of the dead growth plant, looks like it like from the base of one of your plants(mother?).
the plant 2 to the right of the "dead growth" plant doesnt have any black spots,,, your seeing betwwen 2 leaves to the net pot.
the the plant above and just to the right of the "dead growth" plant isnt from the base. its a side branch from the first set of nodes on the mom.
P.S.
yall are shooting all around it and,,,
there is no dead growth.
think goofy stoner mistakes