I have drawn an ellipse and confirmed that the sketch is dimensioned and fully constrained. When I extrude it: 1) no PMI dimension is displayed for the depth of the extrusion, and 2) the ellipse dimension turn from red to purple and cannot be dynamically changed. This leaves me with a part that cannot be easily changed using the parametric dimensions. This doesn't happen if I try the same thing with a circle. This is probably some bonehead move, but does anyone have any idea what is going on?