Just upgrade Mac to Ventura 13.0.1 and now project.greenfoot does not work. I can load an existing project from Scenario/Open recent but cannot open a project by clicking project.greenfoot and using Scenario/Open, project.greenfoot is grayed out.
Found a solution. project.greenfoot still does not work, but I can load an existing project from Scenario/Open by clicking on the folder instead of project.greenfoot inside the folder.