Nute burn?

Second grow indoors. Switched nute regimen up this grow. Only leaves around bud site are clawing downward and only on one of the strains I have going. Nute burn? Too much N given too late into flower?

What strain, grow media, special techniques, nutrients, feed/water sched, ppm/ec, pH, temps, RH, lights? More info is better.

Looks like N toxicity..

Veg nutes are completely out now. How long should I run veg nutes into flower? I'm about 4 weeks in. Stopped veg nutes 2 weeks ago.

If you answer all of @Tracker s questions It'll make it much easier to help..

Strain is ppp by nirvana, media is ff of, only techniques have been topped once in veg now only lst to open them up some, nutes are ff trio, ran there grow 2 weeks into flower as advised on their directions, feed full strength every other water and water every 3rd day, do not currently have tds meter, ph is 6 to 6.5 after making water and feed, temp is 75 to 80f, rh sits around 45 percent, light is a spiderfarmer 1000. Think I got them all. Have a Swiss cheese from nirvana in there also that is looking perfect with none of those other signs and is receiving same feed and everything

Swisscheese

I have not used FF nutes. I've read here that full strength on those is pretty high TDS/EC. Even though the Cheese seems to be handling it fine, it's possible the PPP is just more sensitive.

Does the curling down happen all the time, is it possible it's getting too dry by the time you water?

Rh could go up bout 20%.
Too low humidity, and she won't transpire the way she should.

Claw leaf: Too much nitrate, reduce dosage by 50%.
Leaf cupping: Watch temps and RH

Thanks for reply guys. And tracker it seems to be permanent. Definitely different than wilt. Losing alot more fans from bottom of her comparable also. She's stressed for sure