itersectMass component error

got a strange error using the intersecting mass component: “1. This component only works with raw Rhino brep geometry and not HBZones. Use this component before you turn your breps into HBZones.”

Once the type hint of the intersecting mass component is changed from Brep to ghdoc, the error is gone:

But two of the exterior wall surfaces were wrongly recognized as interior wall surfaces:

This happened after I updated LB and HB just now. Am I missing sth here?

intersecting mass (483 KB)

I just recreated the geometries as breps and not HBZones and it works fine on my machine.

Yes, Mostapha, I’m unable to reproduce this error, either…

Thanks, anyway.