Stupid autoflowers.............. stick with far superior photoperiod plants would be my advice.
Autos are just a craze, they do not offer anything that can not already be achieved with normal feminized plants.
If you are determined to stay with autos, get better genetics - Sweet Seeds are awesome and super stable too.
Matching the daylength could be your problem though, plants don't like going backwards, that is, from 18 hours indoors to 12 hours outdoors for example.