Issue with Ray.Bounce

Greeting. Now I plan to create some ray.bounce from ceiling to to bottom of floor.
Here is my dynamo script:

The issue I met is that only one ceiling have response to ray.bounce

I have no idea where I did wrong. Attached with the revit and dynamo file to you guys. Thanks.
Measure Ceiling.rvt (3.1 MB)
Test.dyn (25.6 KB)

Try Ray Bounce node from data-shapes.
Why did you apply input level 2 to Views?