I'm having the same problem how did you fix it? I have cleaned mine and that didn't do anything!! It's very agravatong when duck and goose hunting...??
I have a benelli super nova I chamber a round then put 2 into the bottom and the (flapper thing) stays up, ok then i fire the first round then pump it and the shell drops out of the bottom and never gets lifted to the chamber .... WHY IS THIS !!!! the only way to keep it from doing that is to chamber a round, put 2 in the bottom the open the action, close it again... so the (flapper thing) will be in the down position!!!!! what is going on with this !!!!!