Playlist songs are randomly grayed out, despite being searchable/playable otherwise

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Plan

Family Premium

Country

USA 

Device

imac 2017 (brand new)

Operating System

os 11

My Question or Issue

 Transferred playlists over from apple music. They work fine on mobile but on the desktop app/web player my playlists are all grayed out. However, these grayed out songs are very common and popular songs that are available on spotify (mmmbop, as one example... and YES that is a popular song 🙂 ) they just won't play in my playlists. Why is this happening for a service I am paying for? I could see if it was a drawback of the free plan, but that is not the case. Thanks.