Is there a way to reset the SafeShutter on a Latitude 9520?

The laptop will detect that that the camera is to be used (light on, flicker sound) however the SafeShutter does not disappear and there is no physical slider to move it out of the way. On occasion, the shutter will not move when the camera is in use, sometimes it will work as intended (flick on and off) and others it will work but then forget to close the shutter.