The seeming lack of a pregnancy function, no sounds from the characters durring sex, and no expressions at all.
Viewing post in Adventurous Monster Breeder comments
you are right, we had facial expressions and sound during sex, sadly i had some bugs and i didnt liked the overall results and decided to get rid of it until i make a rework in it, and about pregnancy for now you and npcs can get pregnant but there are a percentage, you wont get pregnant on the first try, after you or the npc get pregnant an icon will appear, and when the offspring is born there are some randomization on it's characteristics, that's all for now.