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If only your video feed refuses to display, it is likely a camera settings error
Launch the FaceTime app on your computer to ensure that the webcam is functioning
To change the camera being used by your browser follow the links below:
After making changes to the camera settings refresh the browser
If problem has not been resolved, check your devices camera settings using the link below
FaceTime camera should be the default
Virtual camera web plug-in will not work
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