I posted in your discord as well Gabriella… Here is a problem I discovered with faceware studio to unreal engine… when the head turns left and right looks nice in face ware studio but in unreal when the head is (how to say it) in front of camera (at the initial position) it stops for some ms… this gives a somehow a jittery movement… i believe that small same issues exist in other movements as well… check here carefully :
faceware1
Do you have save issues guys ?