Yes I had 3 leaves on my candy caramelo but after the 2nd node it came back to the regular shape , the same happened to
@BigDaddyK with a lemon Ak if I remember well and it switch to the original shape but sometime it can grow with 3 stems at every nodes until harvest ( if you type " cannabis 3 leaves mutation " in Google then I recommend you the sensi seed bank link that explain the phenomenon. Now for the sexing I know 2 method , the classic one is to switch into 12/12 when desired then wait for the 1st signs of sex during the 2 first weeks of flowering and generally the male are showing sex 1st ; the second method is the sexing during the veg : you need the roller ad a paper towel , you take it and put it on a branch to block light, you put a dark tap on the top and you wait for 2 weeks , the part that can't see the light will show their sex thinking that the light schedule is changing but it will happen on that branch only but this method require to wait until you have a branch to cover 😊👍