Stored video analysis gives Content Moderation result for anything with black background

Thanks for reaching out. Amazon Rekognition service doesn’t have any issues reported on content-moderation for videos with black background. Since re:Post does not have DM support, and it's not recommended to share the videos through public forums, please create a support case through console for Rekognition (see doc below) and refer to your original post. Please include the video and corresponding labels detected in the support case. It will get re-directed to the correct team, and we can take a look.

https://docs.aws.amazon.com/awssupport/latest/user/case-management.html