Albums not downloading completely?

Recently, I bought Dave Malloy's cast recording of Octet. At first, one of the songs didn't appear in my folder after downloading completed. So I re-downloaded it, checked that all songs appeared, and copied it to my playlist. But now the song doesn't play.

So I'm on one song. Next is Beautiful, then The Field.

When the song finishes, instead of playing Beautiful, the display for The Field is shown, and the playlist freezes. This seems to count as playing both songs at once, since tapping on either one does not start audio at that point. The only way to continue is to select any other song, and then select The Field. Selecting Beautiful from the library causes all the same process. I tried deleting my music folder for it, going back to the iTunes folder, and putting it back on my phone all at once. Nothing changed from before.

Did I maybe interrupt the download in some way that corrupted the file and need to go back and re-do it? Is this a problem with the file that's in the Store? Do I need to look at the Metadata?

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In a more minor way, some context: When albums have a lot of multi-parters, especially musical theatre, I like to make my own Gapless playlist in Audacity. This is just to avoid my phone throwing a split-second of silence in-between beats. So I'll have like Act 1 Part 1, 2, etc. But I've tried doing this with Hadestown, and 2 songs that play perfectly well just import as blank waveforms: Hey, Little Songbird and Flowers. This might be some sort of copyright protection that I can't "Fix" and is not my main concern.