i don't know what mods you installed because you didn't tell us... i just looked at your image and knew it has a mod
the thing with mods is many have background files that include or change something else so a hair mod [being part of the head] may include a head file because thats where the maker took the hair from and it doesn't help that Larian only makes part notes everytime they change things
i would need to play an unmoded game to that scene in order to test if this change is Larian or a 3rd party mode
for what its worth my current [unmodded patch 7] character is a gnome durge and i have noticed some changes between that and my last halforc durge so it looks like different races have minor face animations so it could be just a drow change you see