Not sure on the media site. But it works for other users and we do use the s9e Media BBCodes pack 20160921 pack. This is the only guy having an issue. I would be hearing it from users if everybody or more then one was dealing with it. This guy says it is all videos no matter where they come from. Even Xenforo supported like youtube.Mike means which media site.
And are you using your own custom media bb code or an add-on?