BuddyPress.org

Thanks but both permissions and thumbnail creation works for me but avatar and group avatar uploading does not.

EDIT: Correction, I can upload avatars after clearing out the user’s avatar folder via FTP. Unfortunately, I cannot delete these new avatars from the user’s Profile page without using FTP. So it does appear to be a permissions issue, where Buddypress cannot delete existing avatars. Ideas?

EDIT again: I found this old post from 1.1 on permissions. I expect this will help: https://buddypress.org/forums/topic/surprising-avatar-behavior