Hmm. It looked like it was part of the selection on mine. On second look, you're right, it's not. I still think that polar parameter should be linear. Why would it work on other drawings? I think I can answer that, actually. Pure guess: An accurately built block is or was in the drawings that it is working on of the same name and when this one is brought in via tool palette, it doesn't redefine the old correct blocks, but gets updated itself. Find the source and fix it.