I have installed version 1.15 of Start 11 on a Windows 10 PC.

It was supposed to migrate the Windows 10 start menu to Start 11.
That is a crucial feature for me.
But it only migrated a small fraction of the Windows 10 start menu tiles to Start 11.
Is this a bug or is there something about certain tiles that prevents migration?

I previously suggested a feature to export and import Windows 10 style start menus.
That would give us a major functional improvement over native Windows 10 and 11.
It would enable the start menu to be transferred  between machines and would also provide a backup.
It would make Microsoft efforts look half finished, which they are; especially Windows 11.

Why not have a separate product to manage, back up and migrate the start menu (tiles)?