Why is this happening?

No. Plants don't reveg from stress bro, they reveg due to an extended light period. If you think the ph is ok then i would say the excess K and build up of salts at this late stage has stopped the uptake of N and other trace elements.

Well whatever causes it the buds now have small leafy flowers growing out of the.buds. However, these are packed with white hairs and trichlomes. Im hoping the new hairs will turn amber in a week so i can harvest it. Getting anxious

Sent from my D5503 using Rollitup mobile app

Trichomes, bro, not trichlomes.