Ladybug showing odd results

Hi, I'm trying to do a sunlight analysis on a building's envelope set for June 21. I've set up the complete defnition, everything seems to work, no errors show up. However, the results are odd. This is more clear when comparing the sun vectors with the results (as shown on the image); I believe the top surface (roof) should receive way more sunlight than it appears to be showing. Any thoughts?

I am attaching the Rhino file, the Grasshopper file and the EPW file, all within a ZIP file.