How to unhide a song in "Liked Songs"

[Scarlet4]

Plan

Free

Country

Canada

Device

iPhone 8

Operating System

iOS 10

Okay so I accidentally hid a song in my "Liked Songs" I tired everything to unhide it but nothing works. It still shows it in the playlist but instead of a heart beside it, it has a red circle with a - in the middle. I tired going into my hidden songs to check if it's in there but it's not. I tried clicking on the song and it shows that its liked but doesn't give me the option to unhide it from my liked songs. I unliked the song and liked it again but it still shows up in my Liked Songs with a red circle - instead of a heart. 

How can I fix this issue?