"Avatars for Multisite" plugin and BuddyPress

Hello, Your ""Avatars for Multisite" plugin" works (well, almost, as once a picture is uploaded, both the "upload" and "alternative upload" buttons disfunction... that is not blocking but does not look good for clients ).
However, once the "BuddyPress" plugin is enabled, the possibility of uploading an Avatar - in fact the whole Avatar section - disappears. The already setup Avatars disappear too.
What can be done about that?
With Thanks,
Maxime.