Morning ribbit, it's been a while since I've seen you around, it's good to see you back.
Anyway those are some great looking plants, your growing.
I had the exact same thing happen to me on the Afghan Kush Ryder from world of seeds that I am growing right now, except mine showed sex ,I forgot ,I'll have to look, but around 30 days I think, showed pistils around 40 days, way longer than normal.
The Bubblelicious auto from Nirvana showed pistils normal like she supposed early.
Your pretty Bubba Kush I hope I'm wrong on this , by now should be damn near pretty close to harvest, so I'd have my doubts on her being an autoflower. Read my journal "26 Day Old Afghan Kush Ryder "I'm growing now and you will see I went thru what your going thru now, except mine finally showed pistils.
I hope I'm wrong, but if yours is over 60 days old , an ain't showed nothing, I'd say something is wrong.
Anyway good to see you back. Mighty pretty plants your growing.