iTunes glitch after trying to revert from Apple Music.

Like a lot people, I tried to revert to iTunes after trying Apple Music. My issue is that there's a glitch whenever I love or unlove a song. whenever I love a certain amount of songs, because the transfer of apps unloved the majority, it ends up loving every single song on my library. When I unlove even a single song, it goes back and unloves the rest.

Please help me out, I want to go back!