Syncronize archicad 26

hello to all of the group; I work in archicad 26 and I have installed the plug in to d5, but once the file is opened and synchronized, if I add or change something from the original file, and I synchronize again (for example I have changed a smooth door for one with shapes) in the new file, the new door appears, but the previous one continues to appear below… what am I doing wrong? … advanced thanks for those who waste your time helping me, regards

Can you screenshot it to show the problem? Did you replace the old one or create a new link model? Have you opened D5 before opening the archicad?