not reading the custom.css in child theme

Hello Team,

I am using the child theme for bp-corp. I am trying to edit custom.css without luck. When I did it before the update, I was force to add it directly to the parent theme. Since I updated, I lost those changes.

I am trying to do it right now.

child theme -->style.css http://screencast.com/t/TkedrqDoNhG

I then added the following to the child theme custom.css in themes/bp-child-theme-name/_inc/css/custom.css

body {
background-image:url('http://fullsitename.com/wp-content/themes/bp-child-theme-name/_inc/images/header-overlay-bottom.jpg');
background-repeat:no-repeat;
background-position:center top;
margin: 0px;
padding: 0px;
}

It does not work for me