Ray-Tracing for Ladybug for Grasshopper

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.

raytracingsample.gh (416.4 KB)

sample.3dm (1016.2 KB)

Hi - for question related to LB|HB, please see the dedicated forum here:

OK thank you for telling it!