TRACKERLIST plugin showinitials not working
I'm trying to get the show initials parameter to filter a tracker listing, but the letter to filter on is not passed in the url, its just left blank and consequently the tracker returns with all items in the tracker.
So if I was trying to filter on the letter t, the url should be:

tiki-index.php?page=mytestpage&tr_initial=t
But instead the "t" is not appended to the url and I just end up with:

tiki-index.php?page=mytestpage&tr_initial=
Is this a problem with my Tiki/tracker configuration? I'm sure I've had this working in the past.