Discrepancy song's id between playlist and other APIs

[Guige]

Plan

Free

Country

Spain

Operating System

Windows 10

My Question or Issue

Some of the Spotify ids for tracks in playlist are different from what I get from other APIs. I think it's kind of lacking update. For example some id has updated but not the ones already in the playlist. In this playlist, https://open.spotify.com/playlist/4NVeFUEHBybfh3ITNG1b8n?si=js9BKt5aTOiCWMm_Cx4Vvg&nd=1 , the first one "Creep"'s id is '6b2oQwSGFkzsMtQruIWm2p' but when I click on the album "Pablo Honey", there is also a "Creep", which shall be exactly the same thing but with a different id '70LcF31zb1H0PyJoS1Sx1r'. 

[Peter_Schorn · Accepted solution]

It's not a bug. This is caused by Spotify's track relinking feature. Read this article thoroughly.

[Guige]

Hi Peter,

Thank you so much! It does solve my doubt!