why no buds ?

if clusters of hairs are forming - not just a single calyx under a branch, then it is flowering. you provide no pictures or proper labels in diary weeks to look at the plant in question. if there is no sign of flowering whatsoever after 8+ weeks or so, it's possible it is a photoperiod. Mistakes happen.

autoflowering genetics and seeds in general are their own individual plants and wont be the same or do the same. so with autos they will start flowering at different times sometimes unlike photoperiods that will flower around the same time because of light schedule change

Hi, this can have several causes. The first is that it takes longer; I have a strain that took over 20 weeks despite being an autoflower and the manufacturer's indication of 14 weeks. Wait a bit longer and then see. The second is that there might be something off with the genetics, and it may have received some ruderalis. If it's not flowering on its own, that means if you have the option to put it in the dark after 12 hours of light, try that. Then it will definitely flower. Or the seed is from a photoperiod strain and somehow ended up in your pack. That has been known to happen before. Hope this helps you a bit.