It seems there are currently multiple issues with the Musixmatch integration in Spotify for Windows:
If you need more information on any of those issues just ask.
And another serious issue:
It seems Spotify shows somehow cached versions of the lyrics from Musixmatch.
For one song I have updated lyrics 10 days ago.
Today I'm still presented with the outdated lyrics in Spotify!
Even worse: If I were to update the lyrics again I would overwrite my previous work! Now since it was my own work, it would only be a huge waste of time, but it could well be somebody elses work I could destroy that way!
I agree - I updated a song's lyrics via MusixMatch's website on November 27, but as of today (December 6) Spotify still displays the old lyrics. Presumably this will change at some point, but clearly Spotify doesn't sync with MusixMatch properly.
Hey there you, Yeah, you! 😁 Welcome - we're glad you joined the Spotify Community! While you here, let's have a fun game…