clone issues

hows she looking? managed to get a rounded canopy with some lst but theres a couple branches lagging, also wondering how many more weeks or days of veg i should go

I'm having a problem getting cuttings to root lately. I use an aeroponic cloner exactly like the one in the attachment, I've been using it for over a year with no problems, I previously had almost a 100% success rate. However these past few months I'm hard pressed to get anything to root. At...

Let me start off by saying that all I do is clones, so asking for insight can be humbling haha. I used to run Grodan 1.5" cubes in a 10x20" tray. 72 per tray 6x12. I was having issues with leaves yellowing between the veins and the leaves shrinking with burnt tips. I thought maybe the cubes...