Participants video displaying inappropriate content

[Wacokidtech]

Version: 6.0.10 (39647) 

Our meetings are open to anyone, and we like to see participants faces, but I need a way to control what those participants show as video, like preventing them from running some kind of video loop of erotic behavior. Seeing their face in real time is OK, but somehow, they're replacing their real time face with something else. Is there a way to control that?