[ARCHIVED] Why did upload of webcam video only show green screen throughout?

sharked
Community Novice

I just did a 16+ minute video using the webcam to document a detailed diagram drawn on a whiteboard.  It took a long time to upload and then I discovered there was no visual, only audio, the visual is nothing but a green screen throughout.  Why did this happen and is there anything I can to do to retrieve the visual part?

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