This is a very good question, without an easy answer. I never thought I would see it, nor did I think it existed...but I have seen fuax nanners before on a friends plant. I told him he seeded...but nothing happened. They were everywhere. Clear as day male pollen sacs but they were inert. He also had faux seeds growing all over the place. From the naked eye, it was seeding, but taking one off and checking proved it was empty.
I highly suggest taking off a developed calyx from under canopy and break it open. If you have a white to brown shell forming on the inside, you're seeded. If you find a small white or green, hard speck inside (and the rest is hollow) it's not seeded and those nanners may be inert. I'm on the "silver lining" side of things and I feel that if they haven't seeded in full after 72 hours, there's no mass pistil die off and no bulbous heads growing on top of your buds....I'd lean towards faux nanners.
The only worrisome part is the other girl in the tent. If you do have a seeding issue, or one is developing, segregate the other lady as soon as possible. Better to lose one then 2👍
Good luck, my friend. I really do hope it is all a false alarm👍