Re: i can't delete the tracker.. (tiki version 16.2)
In my local Tiki 15 installation, when I click the "delete" and confirm with the button in the popup, the deleted tracker continues to be shown because the page didn't refresh after the delete. When I refresh the page, then the tracker is no longer listed.
I see in your screencast that you went to another page and came back to the tracker list, but sometimes the returned-to page is shown from the browser cache and not actually retrieved again from the server. So I just want to check with you that the tracker is in fact not deleted when you refresh the tracker listing.
I can delete trackers here too (like Xavi) though strictly speaking my installation isn't exactly the Tiki 15.2 release.
-- Gary