Playlist API returns different tracks to those shown on the desktop app

[roshy10]

When I make a request for the tracks in a playlist at

/playlists/${playlistId}/tracks 

some of the tracks it returns are slightly different versions to what my desktop client is showing, particularly for albums such as

spotify:album:2gP2LMVcIFgVczSJqn340t

Now this isn't much of a problem on its own and is presumably due to some licencing or other business reason, however if I try and remove one of these tracks with

"DELETE": {
	"scheme": "https",
	"host": "api.spotify.com",
	"filename": "/v1/playlists/${playlistId}/tracks",
	"body": {
		"tracks": [
			{"uri": "spotify:track:2okho7vU7Nsq1UZD0kgIMi"},
			{"uri": "spotify:track:5yKB8qcTSflDercM2PXwot"}
		]
	}
}

from a playlist using the uri given from the above endpoint it doesn't remove it and just leaves it there.

Is it possible to make the delete endpoint work consistently with the data provided by the other endpoints?