i've done this before and gotten to work, but since i have a new computer i have to download and rework things all over again. when doing it last time, i remember having to basicaly "update" the item or something like that before saving it? i'm not sure how i did that at all because i can't remember.
basically the problem is.. the new CAS is showing in CAS when making a boy, which i want it to, but when choosing and saving the sim, in game it disappears and gives my sim a random other hairstyle. i'm not sure what i did last time to make it work..
note: the boy i'm making has a feminine body, and i think that has something to do with it
The link isn't working, but the problem for that is usually the "Restrict Opposite Frame" and "Restrict Opposite Gender" tags, so just uncheck those and you're good to go.
Also if it's a hair that was made before the Gender patch rolled out, you should run the "Update CAS CC for all genders" batch fix.