One autoflower much taller than other?

I have a grow journal in dwc where you can read all the specifics but one of my girls is MUCH taller than the other with much less bud into the flowering process. Closing in on day 70? Questions or comments? If you need updated pics let me know.

Haha just had my wake n bake. Forgot the link.

https://www.rollitup.org/dwc-bubbleponics/635608-dwc-grow-journal-white-widow.html

Some girls are bigger than others..... Some girls are bigger than others.....

Some girl's mothers are bigger than other girl's mothers.