I always have the filter not passworded on but there are still servers with passwords (ex [BA] and [SAD] server).
In the collum in the server list it says it isnt passworded but when i try to join it asks a password.

Dunno if it's a bug of the lobby or of server itself.

I got this aswell.. Odd...

Yep, I have the same. I think it's dedicated server but maybe I'm wrong.

It might happen when a server is started without a password, then a password is set.