When I duplicate the bottom rock in Object mode, the new object is named Icosphere.001, but in the object data, it looks like it automatically sets the new object to use data from the original Icosphere object.
It shows 2 next to the Mesh Data, and I can fix the problem by clicking on the 2, but I don't think I should have to do this every time I duplicate an object. You don't seem to have this problem during your video. Is there a setting I have switched on to automatically share Mesh Data on a duplicated object?
