Until recently you had no activity for several months. Karma average only counts recent(ish) activity, and is only calculated sporadically. Probably it just hasn't caught up with your return to action.
Good point. I will continue to use the id; will wait and watch. Thanks.
I can also not see yours.
I can see it in mine.
I created another login id using openid and it displays karma average for that id. But specifically for this id, karma average is not displayed.