[batrachoid]

Yeah, I had the same problem when I updated to the most recent version of BBpress until I noticed this post over at https://bbpress.org/plugins/topic/avatar-upload/

transom wrote

To get Avatar tab in the profile working under Alpha-2 –

edit avatar-upload.php in the bbpress root

change line 7 from

bb_auth(); // logged in?

to

bb_auth(‘logged_in’); // logged in?

It worked like a charm for me.