I'm having issues with the 'Set rest pose' with my animation. Whenever I try to manoeuvre, my character is not responding properly i.e. when I move my head side to side my character doesn't respond and can become very erractic in movements. Also the red outline in the camera that's meant to cover your face keeps flickering in and out it never rests, it sometimes goes big then small, then nothing at all.
It sounds like the camera is having trouble tracking you. I would add more light to your environment to light up your face more, and get as close to the webcam as possible. If the webcam is working properly you should not be experiencing any of these issues.