Fresh install of template files did not fix the problem and I use nothing other than SABnzbd status which I tried disabling, no difference. Rebooting helped none either.Not sure about that one, maybe try deleting the Plush template files (in your SABnzbd/interfaces/ folder) and then adding the fresh ones back in ("clean replace" instead of overwriting). That's fixed strange issues like that for a lot of people.
Did you run a program that inserts a script into a template, like SABnzbd gui used to do? That might mess it up.
Lost101