Difference in results due to the unknown factor

I am running the same file in Ladybug 1.3 on my PC and the same file (identical geometry and parameters) on my laptop using Ladybug 1.5 and get a strange threefold difference in the illuminance results. Can you suggest which result is right and why?

Would be grateful for any reasonable explanation, because I am loosing my confidence in Radiance.

Difficult to answer without more information.

This may be the result of the radiance parameters, e. g. detail settings.

Could you share a file with internalized geometry?