I’m use to export to bim frome the catalog I will to copy and under a file namn, to that I export , then will I import the bim to the new catalog.
I have all my old catalogs from TurbofloorPlan12 that I use not all will work but most of them
ENV8 to ENV11 works very nice I have also some special catalogs i done from dwg dxf skp 3ds files that I converted to bdb.
Robert