Movement Trails not working?

Not sure what has happened, but “movement trails” is no longer working correctly. Now, if I move a piece, then select “movement trail” for that piece, it only shows the last single move made (select->button release), and not the complete trail. Did I perhaps turn-off some global setting somewhere?

I figured it out. It seems that, if you have the “Mark pieces that move” selection unchecked, the trails do not persist. DOH!