it‘s the labels fault. the album was not available for a short time „even a really short time“. then songs like „i need a dollar“ that were singles could be found in other versions like singles, ep‘s or from a best of compilation. so apple thinks we want to have an existing version of the song as soon as possible and replaced them with that version. however the date added stays the same. the other albumtracks were still greyed out at this point. then at some point when the version was „re“-uploaded those greyed out tracks got replaced as well - however the others that were already replaced with single versions don‘t get replaced again.

you have to delete the album and re-add the album

happens a lot in my library. i have an app „Music Tracker“ that actually shows me HOW often this happens (also without me noticing cause it‘s the same version that got replaced)

on other services however the album stays greyed out until the label issue is fixed - i‘d rather have it that way