I put 7 local music files to my spotify and I added album art to all 7 of the mp3 files but it doesn't show up on one of them. I know this song does have artwork because when I play the song on my computer it has the album art but not when i play it through Spotify. This doesn't happen with the other songs it's only this one missing the artwork in Spotify. Does anyone know what's up with this and if there's a fix for it.
This is pretty straightforward, search for applications that modify mp3 meta tags online. I personally recommend mp3tag it’s very straightforward and lightweight, I use it to modify mp3 files for Spotify and I can vouch for it.