Hi @giuseppe92,
It took me some time to find and fix the root of the problem where it happened in the first place. The issue, a rare edge-case, was related to the room creation process and occurred exclusively in an instance where Rhino removes metadata from a room.
I’ve repaired your model (attached), and if you have any questions, feel free to ask. Additionally, I’ve included the new installer for you to try out if you’re interested.
M02_Aras an Chontae_Geometry_GB_MP.zip (3.3 MB)
Try downloading the latest release of the Rhino plugin v1.52.19.