I have quite some Apple Notes set up at more than 1500. Almost all of my notes contain many links and tags to other notes. For a good chunk of the notes, the importer works as expected and links the notes together. But for many notes, the importer actually only creates the note in Obsidian, but does not port over any content of the Apple Note.

At first sight, I cannot really see some kind of logic or pattern when Obsidian importer does not work properly.