Inactive Door bell

Has anyone else had problems with the Ring Door bell not recording when there has been activity? really losing faith in this door bell! We left a letter out for our postman and he took it (this was next to the door bell), but there was no recording shown!! Over another night somebody decided to place a large bin in our gateway (in full view of the door bell), but true to form, there was no recording! I am beginning to think that this particular Ring Door Bell is defective .... but cannot get any sense from the Ring team.