Question flowering

Try to lover your PH..7.9 is way to high for soil. And about flowering i can say just to wait....if the room is full dark then plant just need time to transwer...nothing to worry about:)

In photoperiods 12 / 12 for light. I have had plants almost take 2 weeks to show signs. Make sure it has 12 hours complete darkness. Good luck and happy growing 🌲🌲🌲👊

You need to check light leaks and double check appliances make that no little light are on if so put tape over them. Plant needs 12 hrs of interrupted dark to flower. If good you just have a late flowerer on your hands.