Do you know of a good plugin or method to force Buddypress and the user's local multisite avatar to be one in the same? We do not use gravatars either. I've tried a few things people have posted and so far have limited success and various conflicts. I am trying to either force Buddypress profiles to use the multisite avatar, or for the rest of the site and multisite to use the one people upload under their Buddypress profile. It doesn't matter where they manage it but hopefully I want people to be able to just go to one place to change their profile avatar, and have that avatar show up in the user profile sections as well as buddypress profiles and areas that display their buddypress avatars.
I had it set where the Buddypress avatar was showing up as the main blog avatar for every site but the main site BuddyPress is on, ironically, but I seem to be getting further away from a solution rather than closer at this point. I'll keep hammering but if you have a good preferred plugin or method to try I'll be happy to switch tracks as I've been on this a while and come back to square trying different things so far.