Let's see a pic. 81f and 50 will definitely give you too high of a pressure deficit, should be more like 70-75% rh. My orange cookies likes to cup too. Throw up some pics:)
The DEs, are they 1000's dimmed down to 750? How far away from canopy top? What reflector? Those rippley twisting leaves a few nodes down from the top in first pic, to me, say ph issues and or lack of humidity. What size of pots? Were the plants vegged in this room? If plants weren't vegged in there, did they get pale n droopy with stems purpling when first moved in? How do you measure rh? Where in room/canopy are your sensors? Multiple sensors? What make of sensor?
Gavita 1000 DE dimmed to 750w.
Early flower - 40" from canopy top
10gal pots
They wwre started in another room but vegged in this room for 14 days after pot upsize. They started going pale first week 12/12
Late flower
30" from canopy top
7 gal pots
Rh sensors. On cheap honey well dehumidifier. Humidistat on Quest 225. Cheap hardware store temp/Rh throughout room at canopy height.
Yes, the VPD is off.. My mistake.
My last round of these vios went pale early flower and red stalks... Then seemed to lockout week 6
Were they perfect before you flipped? 30" is just too close if using the standard reflector, even the 150W, especially if you're running 9 or more. Four or five feet off is much better with lots of overlap. Cheap hygrometers can be way off. I used cheap ones for years and finally got some decent ones you can calibrate. Good one said 26% rh, my cheap ones said 52%. When I'd first put plants in there from my humid veg they'd go pale droopy and stems would purple. Some strains can handle it, some not.
Exxtech makes some good ones but they're really pricey. These work well and they're calibratable with a boveda humidity calibration kit.View attachment 777339 They're pretty cheap too so you can buy a bunch and average the reading. There was a cigar website I got mine from and they came pre calibrated and guaranteed accurate but I can't remember what it was called. 700sqft is a little tight for 32 but guys do run em that tight. I have mine on 5' centers and it's almost too much I've never had em past 1000. I've got 11' ceilings but I do big plants and they always get too close. Anything closer than 4' and I see some paling and leaf edge curl on most strains. And I do run a humidifier until the canopy gets decently full then it seems to hold.