Duran, learning from what happened to other communities, the video was probably added to a member's video playlist and was unable to be hidden from public since it's tied to the original uploader.
Once seen or detected outside the closed community, copyright claim soldiers or anti gay people can report the video easily thus why it had been taken down.
It is alsow worth noting that Bel Ami is the most problematic studio in here, the rate of their videos being taken down is kinda extreme, so I suggest you can enforce people not to add your uploads into theirs.
Cheers.