New captured brush dab does not rotate as I move the brush

I created a black and white image that is kind of tear drop shaped. Round at bottom, pointed at top.

I selected it.

I chose Brush->Capture Dab

I increase the brush size so the shape is obviously visible as I draw

No matter what I do with the pen - rotate, tilt, change direction - the brush remains pointy end up.

How do I get the dab to rotate as the brush moves around?