Ray-Tracing for Ladybug

I like these components in ladybug. so, I tried simulation to calculate ray-tracing, but all ray-tracing-line is not displayed. Please! tell me why this occurs.
sample file is posted on following link.

Can you help me to understand what are you trying to achieve? We don’t show the rays that are blocked and that is how it should be.

Thank you for reply!
I try to show all ray-tracing line. I think that non-display line is not due to shading. I post new pictures that is success and fail. On upper floor, all ray-tracing line is displayed. However, on lower floor, some ray-tracing line are displayed, others are not displayed. I am sorry to trouble you, but I appreciate your cooperation.


↓sample(success 1)

↓sample(success 2)