Not syncing from PC to Phone

[Shak13]

Plan

Premium

Country

UK

Device

Galaxy S10+ and Echo Dot

Operating System

Windows 10

My Question or Issue

Hi,

Any song I add to my spotify from my phone saves like normal but these changes are not reflected on my PC. Its like looking at 2 versions of my library, they're not syncing. I know the version from my Echo and phone are correct as both of these are synced so the issue must lie with my desktops version of Spotify.