I know this sounds strange, but Dace keeps using Yoshimo's lines and soundfiles, mostly in the place of reputation reactions.
I first thought it might've been my borked mod install order so I purged my override folder and reinstalled the game. Then I tried copying a single copy of the t#dace8 into the override folder so I could see how Near Infinity would show it now: when done like that, she has ALL of Yoshimo's lines, both in text and voice. I reinstalled and the problem persists.
Keep in mind this is a clear slate free of all other mods.
As well, I think her hurt and near death sound files might be mixed up: she goes "ow" when she's near death and "A little help, hun" when taking damage... every single hit!
Also, higher level variations of dace use the male thief avatar.