Ants are Marching but Not Singing

I have Ants Marching by Dave Matthews on four different albums. They are recognized as being the same (Roon combines them on a Performances page), but only three versions have lyrics.

This is NOT a complaint (lets call it a gap issue); just wondering why the lyrics didn’t find their way to the fourth album. Is it because lyrics are linked via album and not composition?

Can’t send screenshots right now; sorry.