There is something wrong with that one, temps? ph? Also I don't like the sound of 2-3-1 for flowering, not enough K and this could be the issue. Try...
Too much light or heat ,raise the light. When you put new clones in the veg room don't put them directly under a light 6" away. It can shock and burn...
Put it in the shade and reduce watering it will be stressed from wind burn and leaves could die and drop. When it recovers put it back in the sun and...
No its not rootbound so that's not the issue and the shock will make things worse. Your issue is something else and best to fix that than disturb the...
I think this is the worst mold ive seen in a long time. The buds will be sludge. You must have large fans running in there 24/7 all plants moving in...