Problems with library post migration

Hi there,

I have just purchased a new Macbook pro and followed the migration guide to migrate my old Rekordbox library to my new MBP. Everything worked with all file analysis, playlists, historys. Check the tracks and they play fine.

I also wanted to double check the import from itunes functionality was fine. However what I found is that I am able to import the same track from the same location twice.

Is there a way to stop this?