Keep at it brother!
I just grew 17 ish plants to find out all but 2 were female... life throws you sliders, just gotta hit a dinger right back!
Donโt give up on them, unlikely that they hermed from the light unless you flipped them to 12/12
Some growers vege in 24 hour lights.
Could just be a bad genetic seed. Or maybe not a herm just looks like it.