Unwanted freestyle gaps in cycles

I’m having an issue in Blender Cycles where there’s a bunch of outline gaps. How do I solve this?

If you really can’t get it to show, you can select the pieces that are missing in edit mode (edge select) and press Control e > Mark Freestyle Edge. Then in the Render Layers panel, Freestyle section, Edge Types, select “Edge Mark”. That will force Freestyle to render those edges.