I've completed Nether scroll quest with Edwin and now it's been more than 10 days and nothing happened with his sex transformation - on the site is mentioned that there are changes already after 3 days.
I don't use any mods except ToB-NPC appears busy mod and Merchants (Deidre, Joluv) mod.
?
EDIT:
I already found the answer, seems I used wrong dialogue option at the very beginning when he found the scroll.Sorry for the topic, it's useless, it may as well be deleted.