Hi! We often find this is a consequence of transferring saves from older versions. An easy (if slightly awkward) fix that doesn't require restarting anything is just using the genderswap potion on him once or twice!
Thanks! Worked like a charm!
I got this bug as well on a new save, I've never played any other version.
The game never asked me to choose Julian's gender at any point.
Using a genderswap potion worked though.
