I copied one of the ArchiCAD door objects and created one that has some special parameters, and some logic to support those parameters. I saved favorites using the new door with different settings. Whenever I double-click a favorite, then insert the resulting door, all I get is the hole and a big dot -- as if it weren't loaded. If I pop up the Library Manger and hit 'Reload', the door suddently starts working correctly. What could be causing this?