Hi @flygon7345,
Thanks for reaching out here in the Community 🙂
If you're having difficulties syncing your local files to your phone, we'd recommend you check out this Spotify Answer and follow the steps.
Should the issue persist, it would be great if you could send us a screenshot of your Local Files folder in the desktop app, as well as how the tracks appear in the playlist.
Hope you'll find this info useful. Keep us posted!
Hey there you, Yeah, you! 😁 Welcome - we're glad you joined the Spotify Community! While you here, let's have a fun game…