UIMenu for Mac Catalyst

I want to put a customer MenuItem under the first tab of the Menus (usually its your App Name). I started with the sample code. However, I only change one line of code, it acts inconsistently in different menu, any idea?

UIMenu.Options .displayInline works in menu - File.

Code Block 
builder.insertChild(MenuController.openMenu(), atStartOfMenu: .file)

UIMenu.Options .displayInline does not work in menu - APP.

Code Block 
builder.insertChild(MenuController.openMenu(), atStartOfMenu: .about)