Twisting Cola Need Help

Not sure what’s happening here but the top cola is twisting. It’s under a HLg 100 about 18” below light. 4 weeks old.

Strain; Type, Purple Haze Auto

Soil In Pots

Tent outdoors. No temp control. Today was 90 f but has cooled down

Ph Always 6.5

What Is Strength Of Nutrient Mix? Flora nova grow 7.4.10

Light System, Size? HLg 100

Temps; Day, 85-90 night 75

Humidity; 65

Ventilation System; Yes, 6” exhaust and 10” fan

Ac, Humidifier, De-humidifier, none