[quote=Kieutrang post_id=461278 time=1567561128 user_id=104044]
What have I done wrong
[/quote]

For some reason MM has seen your two scans as being of two different locations.

You can probably see why by [url=https://www.dropbox.com/s/33ttqej00c9xagb/examine%20paths.png?dl=0]examining the beginnings of the paths[/url] for one of your duplicated track pairs.

And it is easily reversed as per Lowlander. ... Try to remove the newly added location to reduce disruption to your playlists.

You can likely remove the location they're on from the Music > Location node, otherwise they're listed under Music > Files to Edit > Dead Links.

Note that removing files from the Library also removes them from the Playlists.

I need help. I downloaded the latest version, hit the add/rescan to the library, and now all of my 27000 entries have doubled up. However when I double click on of the "double"entries is goes a lighter shade of grey and plays a different song out of my library. What have I done wrong and how can I solve this problem without having to remove every double entry individually?