Songs uploaded to Cloud Music Library are showing partially on iOS devices

Hello there. Ive just uploaded 2 albums with 7 songs each into the Music App (macOS 10.15.4) and I have an active Apple Music Subscription. Using Apple Music on the web, all the songs are available and playable.

But on the iPad (iPadOS 13.5.1) and the iPhone (iOS 13.5.1) some of the songs are not showing.

Im attaching a screen from the same album on the Web and iOS.

Thanks!