your first pic of the single-bladed leaf plant, is possibly from light stress ... a week ago, I couldn't have answered your question, but I just had that same thing happen to 12 Willie Nelson clones ... the 'clock' in my lighting timer went bad, losing an hour a day, confusing the plants' schedule, resulting in 3, 2, and single-bladed leaves ... perhaps that particular plant was near a light leak ? ... something to check ... :smokin: