Downloaded songs on Apple Music won’t show up?

Its like some songs are deleting themselves out of my library but when I search for them in the Apple Music library, it says I’ve already downloaded them yet they’re not in my library. They won’t even show up when I search for them in my own library. I have to delete them from my library after I search for them then redownload them so they actually show up. It’s very annoying. This has happened to at least 3 songs that I’ve noticed, there’s probably more. I only switched from Spotify a month ago.