BuddyPress.org

I just had this missing avatar issue after upgrading to 1.2.4 from 1.2.3. My BP site is a standalone installation and not a subblog of WPMU.

I resolved this by creating a bp-custom.php file in /public_html/wp-content/plugins/ and adding the following:

define( ‘BP_AVATAR_URL’, ‘http://prorc.co.uk/wp-content/uploads’ );

This thread helped me solve this issue nice and quickly, thanks : )