Hi @bvs1982 , I am not sure what happens there. Did you run it with Dynamo Core or player?
I just tried a second ago to run the scrip and rooms didnt move, this happens sometime, what i did was restarted revit and Dynamo then run it again and it worked. Please try that and share if it works!
Some rooms are like the room marked in yellow has weird shape, the room doesnt look like it is center but it is how dynamo calculated it i guess