hi all, im having a problem with getting parts in an assembly tomove with physical Dynamics. Can anyone tell me what might causethe face of a part oran entire part not be recognized? when i movethe components it just goes right through the face, no collisiondetection at all. I can take the parts from the assy that i amtrying to move, save them into a sub assembly then open separatelyit works fine when i re-mate everything. Any thoughts? I don't seesettings that can be set to fix this. Could the file me corrupted?thanks in advance.