There used to be a problem in Vue 4 (pro and espirit) where materials with the same name on different figures/props were not imported properly, this may be a pain but import each unit seperatly into vue and set the room up there would be your best option..

Of course I have never had this problem since I switched to Vue Infinite... it collapses materials, but everything imports in where it belongs and shows up.. but that's an expenisve fix..

mes