Hello, We are working on several files in Revit, ranging from mechanical to civil to architectural. When I link or import the mechanical model into Twinmotion, the materials undergo changes whenever I modify them in Twinmotion. The mechanical team uses different families with various materials, and everything appears to be correct. However, these changes in Twinmotion affect the objects and their interactions with other objects based on materials. I appreciate your quick reply to help address this issue promptly.