Not sure if you meant that for the OP or my photos.Looks kind of like a root based issue to me. You might want to toss a potato slice on top of your soil and check it after a few hours to see if anything was attracted to it, one of my favorite ways to check for root aphids.
Do your yellow leaves pull off of the plant easily, like a leaf from a tree in the fall, or are they still firmly attached even though yellow.
Damn dude that sucks. M budgets and new growth are doing the same. They just look like they are behind a couple weeks from where they should be. I couldn't find any signs of pests either.Update....
I am not having any luck determining exactly what it is. I am on well too... I have flushed with ph water and fed with heavy bloom nutes and calmag. They seemed to have Greened up a bit there is still yellowing and edges burnt. My other girls are looking fine that have had the same water and nutes. Just kinda praying I can make it through harvest. Good news is the bud sites are growing a bit again.. I still have alot of leaves clawing. I have checked with 100x no russet mites. It sucks cause to me it looks like they are over nuted yet when I run just ph water they yellow. Idk I have given up trying to figure it out so I can get a little sleep at night