User has migrated from ArchiOffice to Core, but noticed that the project names did not migrate properly and are displayed as numbers in Core.
The project names have migrated to Core, but you need to change the way the projects are displayed in your Core company as per your preference. You can control how the projects are displayed in various screens and lists. In your case, it seems Core is set to display only the Project ID. To change this, go to Global Settings > User Interface panel and under Display As select a format for the projects that includes the project name (for example, Project ID - Name). Check the Core Help for details.