Daylight analysis by surface method

The daylight analysis is somehow not appearing for the entire sensor grid but only for part of it.
I modelled my geometry with the surface method. And I set up the sensor grid with the HB Sensor Grid component. Then I used the Point-In-Time Grib-Based method for the daylight analysis. I then connected it to the Spatial Heat Map component.
The image shows the daylight analysis map. I wanted to put more images but apparently new users can only embed one image.


This image shows sensor grid


This is the image of the whole model. The sensor grid is located on the 2nd floor