only reason i could come up with was either the mother was an autoflower or ur power went out without u know lol.
If it's not an auto, and there've been no light fuck ups, then my guess is that the clone has not begun flowering. Maybe it is just being weird and throwing out a pistil or two?
Being weird throwing out 10or 15 pistols lol. I have to turn the light off whenever I use the microwave, and thats it. Its never off for more than 10 minute.
10 mins of darkness once a day, even randomly probably cant be that bad. I mean, there are clouds in the sky, and some days are dark as hell anyway. I dont think that would stress them or make them flower. Have pictures?