After having done some more testing I find that after unplugging several USB devices I got it to track both eye amd face more often and for longer. However, opening apps like Discord or other similar computational processes "kill" the mouth face tracking but the eyes consistently track. I have 8 Vive tracker dangles plugged into two different hubs so unplugging those and other peripherals allow for the face to track. The problem is that I would like to use all of my trackers at the same time and figure out why the face tracker is so picky. It even causes SteamVR to crash at times which the headset alone has never done.