I'm moving to Archicad25 from 22 and want to bring the migration library into my file. I've added the library to the library manager but when I go to place an object, the migration library no longer appears as an option in the object menu. I've also tried exporting certain objects from the migration library and saved them into the embedded library however the same problem persists, when I go to place one of those objects they do not appear.
The migration libraries are only there to allow library parts that cannot be automatically updated with their newer versions to be loaded and prevent missing objects. You ideally need to use the newer version that is shipped with Archicad 25.
Lee Hankins ArchiCAD 4.5 - Archicad 27UKI Apple Silicon 5003 macOS Ventura (13.5.2)