What do you mean by nothing? Is there any errors in the console?

If it helps I noticed that sometimes after having sex with a slave, when going back to the interactions screen I am in a 4th (empty) tab called "sexmode". I need to click "mode" to cycle through it and get back to the normal three modes (meet, sex and abuse).

Darkknightdragon, make sure you are in "interaction : sex" (Not "sexmode"). You should see five tabs : caress, fucking, tools, sm, humiliation. But you won't find bestiality as it is not implemented in the new system yet.

Edit : steps to reproduce : start a social interaction and end it with "request intimacy" (even if you unlocked it already with that slave). Do the sexual interaction and afterwards click interaction button, you'll be on a "sexmode" empty tab.