Pistils in the Veg Room.

I'm trying to figure out why my plants keep developing pistils in my veg room. My light is on a 24hr cycle and I thought it was the 12 hours of dark that started the process. What am I missing?

depending on strain they can preflower. how long have they been vegging?

I've only had experience with 8 strains, but all those starting showing preflowers bewteen 4 and 6 weeks into veg.

I appreciate the info. All of mine are right around six weeks. In the future, I'll take the time to search for my questions since I already found the exact same info in other posts. Sorry if I wasted anyone's time, and I'll get all of the "noob" out of my system.