first i hope u find out the issues. i suggest you keep notes to maintain more safety in your runs. i noticed you said you had a bunch of useless weed before.
how did that happen exactly ?
I ran lowryder #2, auto's were a new thing. No issues with the grow, just tons of leafy, grassy bud since I harvested too soon and didn't stop the ferts at all.
Another time I didn't maintain clean environment, got spider mites, tried to salvage, spread to flower, ended up with tons of horrid neem scented spiderwebbed buds....swore never again would I let it get that bad.
Trying again now, was on the preventative sprays for mites, rooms were clean and new, *had* kept the ferts low until I hit bloom and went nuts with the additives. Also, no longer running any 'auto' strains, strictly photo period so i can control when to flip and clone them. IIRC my better runs previously were nirvana kaya gold, in my paranoia I destroyed all pictures and evidence years ago.
Soil seems just as risky, with little to do if you burn them. I have some mystery plants going in FFOF/FFSF but they are literally half the size of the hydro room and much slower growth. They were only started days apart seed-wise.
I maintain hope something will be decently smokeable out of the room..... if not I guess bubblegum is waiting to take the room over so I'll try try again.