Forum Membes banned and moved to "COPPA users awaiting moderation" usergroup ??
 

Some members are writing me (admin) about being banned on the forums. I didn't ban them. When I check their user name, it shows their primary group just gets changed to "COPPA users awaiting moderation", but when I search for users in that usergroup, it says there aren't any in there.

So I just can't go an unban them all easily. I have to change their primary user group to "Registered users".

A few days later, they get banned again.

Is there something I am missing? How can I prevent this from happening?