In a type tree, I have a type where the Class properties is set to Group. In the Type Syntax properties, Terminator is set to Variable. When I try to set the default, Type Designer abruptly closes. I've tried clicking on the ellipses and choosing a default value, and I've tried typing the default value, nothing seems to work. Has anyone else experienced this, and does anyone have any suggestions? I'm using Version 8.1, Build 114.