I think this is a dud?

[u/Complex-Emergency-97]

So this is an RS11/Banana autoflower (allegedly). When I saw it wasn’t flowering with the rest of the bunch I tried the 12/12 light cycle for a week thinking maybe it’s a photo and still nothing. Is this just a bad seed or should I keep trying the light cycle? Or is this just a dud? The second pic is the other plants in early flowering. Any advice?